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CVE-2026-5731

Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2

9.8 CriticalFix available

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149.0.2, Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.35%Up 0.3 points since Apr 8, 2026
90%50%10%1%

What each source reports

CVE List Score used 9.8

Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149.0.2, Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1.

Record
CVE-2026-5731
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-119, CWE-787
Updated
2026-11-02
EUVDEUVD-2026-19610 9.8

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149.0.2, Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1.

Record
EUVD-2026-19610
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-fwrw-mfrr-q8px 9.8

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0,...

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149.0.2, Firefox ESR < 115.34.1, and Firefox ESR < 140.9.1.

Record
GHSA-fwrw-mfrr-q8px
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-119, CWE-787
Updated
2026-11-02
NVD 9.8

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149.0.2, Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1.

Record
CVE-2026-5731
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-119, CWE-787
Updated
2026-11-02
OSVDEBIAN-CVE-2026-5731 9.8

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149.0.2, Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1.

Record
DEBIAN-CVE-2026-5731
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVOESA-2026-1874 9.8

firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. %if 0 %global moz_debug_prefix /lib/debug %global moz_debug_dir /lib/debug/ %global uname_m %(uname -m) %global symbols_file_name -.en-US.-%(uname.crashreporter-symbols.zip %global symbols_file_path /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip %global _find_debuginfo_opts -p /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip -o debugcrashreporter.list %global crashreporter_pkg_name mozilla-crashreporter--debuginfo

Security Fix(es):

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149.0.2, Firefox ESR < 115.34.1, and Firefox ESR < 140.9.1.(CVE-2026-5731)

Incorrect boundary conditions, integer overflow in the Graphics: Text component. This vulnerability affects Firefox < 149.0.2 and Firefox ESR < 140.9.1.(CVE-2026-5732)

Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149.0.2 and Firefox ESR < 140.9.1.(CVE-2026-5734)

Record
OESA-2026-1874
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
Show 48 moreShow less
OSVOESA-2026-1875 9.8

firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. %if 0 %global moz_debug_prefix /lib/debug %global moz_debug_dir /lib/debug/ %global uname_m %(uname -m) %global symbols_file_name -.en-US.-%(uname.crashreporter-symbols.zip %global symbols_file_path /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip %global _find_debuginfo_opts -p /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip -o debugcrashreporter.list %global crashreporter_pkg_name mozilla-crashreporter--debuginfo

Security Fix(es):

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149.0.2, Firefox ESR < 115.34.1, and Firefox ESR < 140.9.1.(CVE-2026-5731)

Incorrect boundary conditions, integer overflow in the Graphics: Text component. This vulnerability affects Firefox < 149.0.2 and Firefox ESR < 140.9.1.(CVE-2026-5732)

Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149.0.2 and Firefox ESR < 140.9.1.(CVE-2026-5734)

Record
OESA-2026-1875
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVOESA-2026-1876 9.8

firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. %if 0 %global moz_debug_prefix /lib/debug %global moz_debug_dir /lib/debug/ %global uname_m %(uname -m) %global symbols_file_name -.en-US.-%(uname.crashreporter-symbols.zip %global symbols_file_path /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip %global _find_debuginfo_opts -p /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip -o debugcrashreporter.list %global crashreporter_pkg_name mozilla-crashreporter--debuginfo

Security Fix(es):

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149.0.2, Firefox ESR < 115.34.1, and Firefox ESR < 140.9.1.(CVE-2026-5731)

Incorrect boundary conditions, integer overflow in the Graphics: Text component. This vulnerability affects Firefox < 149.0.2 and Firefox ESR < 140.9.1.(CVE-2026-5732)

Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149.0.2 and Firefox ESR < 140.9.1.(CVE-2026-5734)

Record
OESA-2026-1876
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVOESA-2026-1877 9.8

firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. %if 0 %global moz_debug_prefix /lib/debug %global moz_debug_dir /lib/debug/ %global uname_m %(uname -m) %global symbols_file_name -.en-US.-%(uname.crashreporter-symbols.zip %global symbols_file_path /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip %global _find_debuginfo_opts -p /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip -o debugcrashreporter.list %global crashreporter_pkg_name mozilla-crashreporter--debuginfo

Security Fix(es):

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149.0.2, Firefox ESR < 115.34.1, and Firefox ESR < 140.9.1.(CVE-2026-5731)

Incorrect boundary conditions, integer overflow in the Graphics: Text component. This vulnerability affects Firefox < 149.0.2 and Firefox ESR < 140.9.1.(CVE-2026-5732)

Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149.0.2 and Firefox ESR < 140.9.1.(CVE-2026-5734)

Record
OESA-2026-1877
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVOESA-2026-1878 9.8

firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. %if 0 %global moz_debug_prefix /lib/debug %global moz_debug_dir /lib/debug/ %global uname_m %(uname -m) %global symbols_file_name -.en-US.-%(uname.crashreporter-symbols.zip %global symbols_file_path /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip %global _find_debuginfo_opts -p /lib/debug//-.en-US.-%(uname.crashreporter-symbols.zip -o debugcrashreporter.list %global crashreporter_pkg_name mozilla-crashreporter--debuginfo

Security Fix(es):

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149.0.2, Firefox ESR < 115.34.1, and Firefox ESR < 140.9.1.(CVE-2026-5731)

Incorrect boundary conditions, integer overflow in the Graphics: Text component. This vulnerability affects Firefox < 149.0.2 and Firefox ESR < 140.9.1.(CVE-2026-5732)

Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149.0.2 and Firefox ESR < 140.9.1.(CVE-2026-5734)

Record
OESA-2026-1878
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVOESA-2026-2109 10.0

thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.(CVE-2026-2776)

Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.(CVE-2026-2780)

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149.0.2, Firefox ESR < 115.34.1, and Firefox ESR < 140.9.1.(CVE-2026-5731)

Incorrect boundary conditions, integer overflow in the Graphics: Text component. This vulnerability affects Firefox < 149.0.2 and Firefox ESR < 140.9.1.(CVE-2026-5732)

Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 149.0.2 and Firefox ESR < 140.9.1.(CVE-2026-5734)

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10.(CVE-2026-6746)

Use-after-free vulnerability in the WebRTC component of Firefox. This vulnerability was fixed in Firefox 150 and Firefox ESR 140.10.(CVE-2026-6747)

Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150 and Firefox ESR 140.10.(CVE-2026-6748)

Information disclosure due to uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10.(CVE-2026-6749)

Privilege escalation vulnerability in the WebRender graphics component of Firefox browser. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10.(CVE-2026-6750)

An uninitialized memory vulnerability exists in the Audio/Video: Web Codecs component of Firefox browser. This vulnerability was fixed in Firefox 150 and Firefox ESR 140.10.(CVE-2026-6751)

Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10.(CVE-2026-6752)

Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.(CVE-2026-6753)

A use-after-free vulnerability exists in the JavaScript Engine component of Mozilla Firefox. An attacker could potentially exploit this vulnerability to execute arbitrary code or cause the application to crash. This vulnerability has been fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10.(CVE-2026-6754)

Invalid pointer in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.(CVE-2026-6757)

A use-after-free vulnerability exists in the Widget: Cocoa component of Mozilla Firefox and Thunderbird. The vulnerability stems from the program referencing memory after it has been freed. An attacker could exploit this vulnerability to cause the application to crash, read unexpected values, or execute arbitrary code, thereby affecting the confidentiality, integrity, and availability of the system. This vulnerability affects Firefox versions up to 149 and corresponding versions of Thunderbird.(CVE-2026-6759)

A privilege escalation vulnerability exists in the Networking component of Mozilla Firefox and Thunderbird. An attacker could potentially exploit this…

Record
OESA-2026-2109
CVSS 3.1
10.0 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:11805 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:11805
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:11813 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2026:11813
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:12264 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2026:12264
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:13342 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2026:13342
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:13412 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2026:13412
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:13533 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2026:13533
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:13582 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:13582
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:13583 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:13583
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:13596 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:13596
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:13600 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:13600
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:13665 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:13665
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:13682 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:13682
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:13683 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:13683
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:13922 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:13922
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:13977 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:13977
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:14223 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2026:14223
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:14303 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2026:14303
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:15889 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2026:15889
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:7671 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:7671
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:7672 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:7672
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:8052 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:8052
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:8459 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2026:8459
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:9345 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2026:9345
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:9638 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2026:9638
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRLSA-2026:7671 8.8

Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):

  • libpng: libpng: Arbitrary code execution due to use-after-free vulnerability (CVE-2026-33416)

  • libpng: libpng: Information disclosure and denial of service via out-of-bounds read/write in Neon palette expansion (CVE-2026-33636)

  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5734)

  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5731)

  • firefox: thunderbird: Incorrect boundary conditions, integer overflow in the Graphics: Text component (CVE-2026-5732)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Record
RLSA-2026:7671
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRLSA-2026:7672 8.8

Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):

  • libpng: libpng: Arbitrary code execution due to use-after-free vulnerability (CVE-2026-33416)

  • libpng: libpng: Information disclosure and denial of service via out-of-bounds read/write in Neon palette expansion (CVE-2026-33636)

  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5734)

  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5731)

  • firefox: thunderbird: Incorrect boundary conditions, integer overflow in the Graphics: Text component (CVE-2026-5732)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Record
RLSA-2026:7672
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRLSA-2026:8052 8.8

Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):

  • libpng: libpng: Arbitrary code execution due to use-after-free vulnerability (CVE-2026-33416)

  • libpng: libpng: Information disclosure and denial of service via out-of-bounds read/write in Neon palette expansion (CVE-2026-33636)

  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5734)

  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5731)

  • firefox: thunderbird: Incorrect boundary conditions, integer overflow in the Graphics: Text component (CVE-2026-5732)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Record
RLSA-2026:8052
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRLSA-2026:8459 8.8

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

  • libpng: libpng: Arbitrary code execution due to use-after-free vulnerability (CVE-2026-33416)

  • libpng: libpng: Information disclosure and denial of service via out-of-bounds read/write in Neon palette expansion (CVE-2026-33636)

  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5734)

  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5731)

  • firefox: thunderbird: Incorrect boundary conditions, integer overflow in the Graphics: Text component (CVE-2026-5732)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Record
RLSA-2026:8459
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRLSA-2026:9345 8.8

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

  • libpng: libpng: Arbitrary code execution due to use-after-free vulnerability (CVE-2026-33416)

  • libpng: libpng: Information disclosure and denial of service via out-of-bounds read/write in Neon palette expansion (CVE-2026-33636)

  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5734)

  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5731)

  • firefox: thunderbird: Incorrect boundary conditions, integer overflow in the Graphics: Text component (CVE-2026-5732)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Record
RLSA-2026:9345
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRLSA-2026:9638 8.8

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

  • libpng: libpng: Arbitrary code execution due to use-after-free vulnerability (CVE-2026-33416)

  • libpng: libpng: Information disclosure and denial of service via out-of-bounds read/write in Neon palette expansion (CVE-2026-33636)

  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5734)

  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5731)

  • firefox: thunderbird: Incorrect boundary conditions, integer overflow in the Graphics: Text component (CVE-2026-5732)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Record
RLSA-2026:9638
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2026-5731 9.8

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149.0.2, Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1.

Record
UBUNTU-CVE-2026-5731
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVALSA-2026:7671 No score

Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):

  • libpng: libpng: Arbitrary code execution due to use-after-free vulnerability (CVE-2026-33416)
  • libpng: libpng: Information disclosure and denial of service via out-of-bounds read/write in Neon palette expansion (CVE-2026-33636)
  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5734)
  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5731)
  • firefox: thunderbird: Incorrect boundary conditions, integer overflow in the Graphics: Text component (CVE-2026-5732)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Record
ALSA-2026:7671
Updated
2026-11-02
OSVALSA-2026:7672 No score

Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):

  • libpng: libpng: Arbitrary code execution due to use-after-free vulnerability (CVE-2026-33416)
  • libpng: libpng: Information disclosure and denial of service via out-of-bounds read/write in Neon palette expansion (CVE-2026-33636)
  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5734)
  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5731)
  • firefox: thunderbird: Incorrect boundary conditions, integer overflow in the Graphics: Text component (CVE-2026-5732)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Record
ALSA-2026:7672
Updated
2026-11-02
OSVALSA-2026:8052 No score

Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

Security Fix(es):

  • libpng: libpng: Arbitrary code execution due to use-after-free vulnerability (CVE-2026-33416)
  • libpng: libpng: Information disclosure and denial of service via out-of-bounds read/write in Neon palette expansion (CVE-2026-33636)
  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5734)
  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5731)
  • firefox: thunderbird: Incorrect boundary conditions, integer overflow in the Graphics: Text component (CVE-2026-5732)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Record
ALSA-2026:8052
Updated
2026-11-02
OSVALSA-2026:8459 No score

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

  • libpng: libpng: Arbitrary code execution due to use-after-free vulnerability (CVE-2026-33416)
  • libpng: libpng: Information disclosure and denial of service via out-of-bounds read/write in Neon palette expansion (CVE-2026-33636)
  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5734)
  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5731)
  • firefox: thunderbird: Incorrect boundary conditions, integer overflow in the Graphics: Text component (CVE-2026-5732)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Record
ALSA-2026:8459
Updated
2026-11-02
OSVALSA-2026:9345 No score

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

  • libpng: libpng: Arbitrary code execution due to use-after-free vulnerability (CVE-2026-33416)
  • libpng: libpng: Information disclosure and denial of service via out-of-bounds read/write in Neon palette expansion (CVE-2026-33636)
  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5734)
  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5731)
  • firefox: thunderbird: Incorrect boundary conditions, integer overflow in the Graphics: Text component (CVE-2026-5732)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Record
ALSA-2026:9345
Updated
2026-11-02
OSVALSA-2026:9638 No score

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

  • libpng: libpng: Arbitrary code execution due to use-after-free vulnerability (CVE-2026-33416)
  • libpng: libpng: Information disclosure and denial of service via out-of-bounds read/write in Neon palette expansion (CVE-2026-33636)
  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5734)
  • thunderbird: firefox: Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2 (CVE-2026-5731)
  • firefox: thunderbird: Incorrect boundary conditions, integer overflow in the Graphics: Text component (CVE-2026-5732)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Record
ALSA-2026:9638
Updated
2026-11-02
OSVCLSA-2026-1785560172 No score

thunderbird: Fix of 255 CVEs

  • rebase from Thunderbird 115.4.1 to 140.12.0 ESR

  • CVE-2022-3032: When receiving an HTML email that contained an iframe element, which used a srcdoc attribute to define the inner HTML document, remote objects specified in the nested document, for example images or videos, were not blocked

  • CVE-2023-0430: Certificate OCSP revocation status was not checked when verifying S/Mime signatures

  • CVE-2023-0547: OCSP revocation status of recipient certificates was not checked when sending S/Mime encrypted email, and revoked certificates would be accepted

  • CVE-2023-0616: If a MIME email combines OpenPGP and OpenPGP MIME data in a certain way Thunderbird repeatedly attempts to process and display the message, which could cause Thunderbird's user interface to lock up and no longer respond to the user's actions

  • CVE-2023-1945: Unexpected data returned from the Safe Browsing API could have led to memory corruption and a potentially exploitable crash

  • CVE-2023-4573: When receiving rendering data over IPC mStream could have been destroyed when initialized, which could have led to a use-after-free causing a potentially exploitable crash

  • CVE-2023-4574: When creating a callback over IPC for showing the Color Picker window, multiple of the same callbacks could have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks finished

  • CVE-2023-4575: When creating a callback over IPC for showing the File Picker window, multiple of the same callbacks could have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks finished

  • CVE-2023-4577: When UpdateRegExpStatics attempted to access initialStringHeap it could already have been garbage collected prior to entering the function, which could potentially have led to an exploitable crash

  • CVE-2023-4578: When calling JS::CheckRegExpSyntax a Syntax Error could have been set which would end in calling convertToRuntimeErrorAndClear. A path in the function could attempt to allocate memory when none is available which would have caused a newly created Out of Memory exception to be mishandled as a Syntax Error

  • CVE-2023-4580: Push notifications stored on disk in private browsing mode were not being encrypted potentially allowing the leak of sensitive information

  • CVE-2023-4581: Excel .xll add-in files did not have a blocklist entry in Firefox's executable blocklist which allowed them to be downloaded without any warning of their potential harm

  • CVE-2023-5169: A compromised content process could have provided malicious data in a PathRecording resulting in an out-of-bounds write, leading to a potentially exploitable crash in a privileged process

  • CVE-2023-5171: During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing an attacker to write two NUL bytes, and cause a potentially exploitable crash

  • CVE-2023-5724: Drivers are not always robust to extremely large draw calls and in some cases this scenario could have led to a crash

  • CVE-2023-5725: A malicious installed WebExtension could open arbitrary URLs, which under the right circumstance could be leveraged to collect sensitive user data

  • CVE-2023-5732: An attacker could have created a malicious link using bidirectional characters to spoof the location in the address bar when visited

  • CVE-2023-6204: On some systems—depending on the graphics settings and drivers—it was possible to force an out-of-bounds read and leak memory data into the images created on the canvas element

  • CVE-2023-6205: It was possible to cause the use of a MessagePort after it had already been freed, which could potentially have led to an exploitable crash

  • CVE-2023-6206: The black fade animation when exiting fullscreen is roughly the length of the anti-clickjacking delay on permission prompts

  • CVE-2023-6207: Ownership…

Record
CLSA-2026-1785560172
Updated
2026-11-02
OSVMGASA-2026-0106 No score

Updated firefox & thunderbird packages fix security vulnerabilities

Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2. (CVE-2026-5731) Incorrect boundary conditions, integer overflow in the Graphics: Text component. (CVE-2026-5732) Memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2. (CVE-2026-5734)

Record
MGASA-2026-0106
Updated
2026-11-02
OSVopenSUSE-SU-2026:10501-1 No score

MozillaThunderbird-140.9.1-1.1 on GA media

These are all security issues fixed in the MozillaThunderbird-140.9.1-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:10501-1
Updated
2026-11-02
OSVopenSUSE-SU-2026:10503-1 No score

firefox-esr-140.9.1-1.1 on GA media

These are all security issues fixed in the firefox-esr-140.9.1-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:10503-1
Updated
2026-11-02
OSVopenSUSE-SU-2026:10511-1 No score

MozillaFirefox-149.0.2-1.1 on GA media

These are all security issues fixed in the MozillaFirefox-149.0.2-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:10511-1
Updated
2026-11-02
OSVopenSUSE-SU-2026:20486-1 No score

Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues:

Update to Firefox Extended Support Release 140.9.1 ESR (bsc#1261663).

  • MFSA 2026-27:
    • CVE-2026-5731: memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2.
    • CVE-2026-5732: incorrect boundary conditions, integer overflow in the Graphics: Text component.
    • CVE-2026-5734: memory safety bugs fixed in Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2.
Record
openSUSE-SU-2026:20486-1
Updated
2026-11-02

Affected products

Show 9 moreShow less

Affected packages

Affected packages
PackageAffectedFixed
firefox
AlmaLinux:9
From an advisory covering 5 CVEs
 before 140.9.1-1.el9_7.alma.1
140.9.1-1.el9_7.alma.1
firefox-x11
AlmaLinux:9
From an advisory covering 5 CVEs
 before 140.9.1-1.el9_7.alma.1
140.9.1-1.el9_7.alma.1
firefox
AlmaLinux:10
From an advisory covering 5 CVEs
 before 140.9.1-1.el10_1
140.9.1-1.el10_1
firefox
AlmaLinux:8
From an advisory covering 5 CVEs
 before 140.9.1-1.el8_10.alma.1
140.9.1-1.el8_10.alma.1
thunderbird
AlmaLinux:9
From an advisory covering 5 CVEs
 before 140.9.1-1.el9_7.alma.1
140.9.1-1.el9_7.alma.1
thunderbird
AlmaLinux:8
From an advisory covering 5 CVEs
 before 140.9.1-1.el8_10.alma.1
140.9.1-1.el8_10.alma.1
thunderbird
AlmaLinux:10
From an advisory covering 5 CVEs
 before 140.9.1-1.el10_1.alma.1
140.9.1-1.el10_1.alma.1
thunderbird
TuxCare:AlmaLinux:9.2
From an advisory covering 253 CVEs
 before 140.12.0-1.el9_2.alma.1.tuxcare.els1
140.12.0-1.el9_2.alma.1.tuxcare.els1
firefox-esr
Debian:12
 before 140.9.1esr-1~deb12u1, plus listed versions
102.11.0esr-1102.12.0esr-1102.12.0esr-1~deb10u1102.12.0esr-1~deb11u1102.12.0esr-1~deb12u1
Show 45 moreShow less
102.13.0esr-1102.13.0esr-1~deb10u1102.13.0esr-1~deb11u1102.13.0esr-1~deb12u1102.14.0esr-1~deb10u1102.14.0esr-1~deb11u1102.14.0esr-1~deb12u1102.15.0esr-1~deb10u1102.15.0esr-1~deb11u1102.15.0esr-1~deb12u1102.15.1esr-1~deb10u1102.15.1esr-1~deb11u1102.15.1esr-1~deb12u1115.0.2esr-1115.1.0esr-1115.10.0esr-1115.10.0esr-1~deb10u1115.10.0esr-1~deb11u1115.10.0esr-1~deb12u1115.11.0esr-1115.11.0esr-1~deb10u1115.11.0esr-1~deb11u1115.11.0esr-1~deb12u1115.12.0esr-1115.12.0esr-1~deb10u1115.12.0esr-1~deb11u1115.12.0esr-1~deb12u1115.13.0esr-1115.13.0esr-1~deb11u1115.13.0esr-1~deb12u1115.13.0esr-2115.14.0esr-1115.14.0esr-1~deb11u1115.14.0esr-1~deb12u1115.15.0esr-1115.15.0esr-1~deb11u1115.15.0esr-1~deb12u1115.2.0esr-1115.2.1esr-1115.3.0esr-1115.3.0esr-1~deb10u1115.3.0esr-1~deb11u1115.3.0esr-1~deb12u1115.3.1esr-1~deb10u1115.3.1esr-1~deb11u1
140.9.1esr-1~deb12u1
firefox-esr
Debian:13
 before 140.9.1esr-1~deb13u1, plus listed versions
128.13.0esr-1128.14.0esr-1128.14.0esr-1~deb11u1128.14.0esr-1~deb12u1128.14.0esr-1~deb13u1
Show 37 moreShow less
140.3.0esr-1140.3.0esr-1~deb11u1140.3.0esr-1~deb11u2140.3.0esr-1~deb12u1140.3.0esr-1~deb13u1140.3.0esr-2140.3.1esr-1140.3.1esr-1~deb11u1140.3.1esr-1~deb12u1140.3.1esr-1~deb13u1140.3.1esr-2140.4.0esr-1140.4.0esr-1~deb11u1140.4.0esr-1~deb12u1140.4.0esr-1~deb13u1140.5.0esr-1140.5.0esr-1~deb11u1140.5.0esr-1~deb12u1140.5.0esr-1~deb13u1140.6.0esr-1140.6.0esr-1~deb11u1140.6.0esr-1~deb12u1140.6.0esr-1~deb13u1140.7.0esr-1140.7.0esr-1~deb11u1140.7.0esr-1~deb12u1140.7.0esr-1~deb13u1140.8.0esr-1140.8.0esr-1~deb11u1140.8.0esr-1~deb12u1140.8.0esr-1~deb13u1140.9.0esr-1140.9.0esr-1~deb11u1140.9.0esr-1~deb12u1140.9.0esr-1~deb13u1140.9.1esr-1~deb11u1140.9.1esr-1~deb12u1
140.9.1esr-1~deb13u1
Show 150 moreShow less
Affected packages
PackageAffectedFixed
firefox-esr
Debian:14
 before 140.9.1esr-1, plus listed versions
128.13.0esr-1128.14.0esr-1128.14.0esr-1~deb11u1128.14.0esr-1~deb12u1128.14.0esr-1~deb13u1
Show 38 moreShow less
140.3.0esr-1140.3.0esr-1~deb11u1140.3.0esr-1~deb11u2140.3.0esr-1~deb12u1140.3.0esr-1~deb13u1140.3.0esr-2140.3.1esr-1140.3.1esr-1~deb11u1140.3.1esr-1~deb12u1140.3.1esr-1~deb13u1140.3.1esr-2140.4.0esr-1140.4.0esr-1~deb11u1140.4.0esr-1~deb12u1140.4.0esr-1~deb13u1140.5.0esr-1140.5.0esr-1~deb11u1140.5.0esr-1~deb12u1140.5.0esr-1~deb13u1140.6.0esr-1140.6.0esr-1~deb11u1140.6.0esr-1~deb12u1140.6.0esr-1~deb13u1140.7.0esr-1140.7.0esr-1~deb11u1140.7.0esr-1~deb12u1140.7.0esr-1~deb13u1140.8.0esr-1140.8.0esr-1~deb11u1140.8.0esr-1~deb12u1140.8.0esr-1~deb13u1140.9.0esr-1140.9.0esr-1~deb11u1140.9.0esr-1~deb12u1140.9.0esr-1~deb13u1140.9.1esr-1~deb11u1140.9.1esr-1~deb12u1140.9.1esr-1~deb13u1
140.9.1esr-1
thunderbird
Debian:12
 before 1:140.9.1esr-1~deb12u1, plus listed versions
1:102.11.0-11:102.12.0-11:102.12.0-1~deb10u11:102.12.0-1~deb11u11:102.12.0-1~deb12u1
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1:102.13.0-11:102.13.0-1~deb10u11:102.13.0-1~deb11u11:102.13.0-1~deb12u11:102.13.1-11:102.13.1-1~deb10u11:102.13.1-1~deb11u11:102.13.1-1~deb12u11:102.14.0-1~deb10u11:102.14.0-1~deb11u11:102.14.0-1~deb12u11:102.15.0-1~deb10u11:102.15.0-1~deb11u11:102.15.0-1~deb12u11:102.15.1-1~deb10u11:102.15.1-1~deb11u11:102.15.1-1~deb12u11:103.0~b5-11:104.0~b2-11:110.0~b4-11:112.0~b1-11:113.0~b3-11:114.0~b2-11:115.0-11:115.0.1-11:115.0.1-21:115.0~b4-11:115.0~b6-11:115.1.0-11:115.1.1-11:115.10.1-11:115.10.1-1~deb10u11:115.10.1-1~deb11u11:115.10.1-1~deb12u11:115.11.0-11:115.11.0-1~deb10u11:115.11.0-1~deb11u11:115.11.0-1~deb12u11:115.12.0-11:115.12.0-1~deb10u11:115.12.0-1~deb11u11:115.12.0-1~deb12u11:115.13.0-11:115.13.0-1~deb11u11:115.13.0-1~deb12u1
1:140.9.1esr-1~deb12u1
thunderbird
Debian:13
 before 1:140.9.1esr-1~deb13u1, plus listed versions
1:128.13.0esr-11:128.14.0esr-11:128.14.0esr-1~deb11u11:128.14.0esr-1~deb12u11:128.14.0esr-1~deb13u1
Show 45 moreShow less
1:129.0~b6-11:130.0~b3-11:132.0~b6-11:135.0-11:136.0-11:137.0-11:138.0-11:140.0.1esr-11:140.1.0esr-11:140.1.1esr-11:140.2.0esr-11:140.3.0esr-11:140.3.0esr-1~deb11u11:140.3.0esr-1~deb12u11:140.3.0esr-1~deb13u11:140.3.1esr-11:140.4.0esr-11:140.4.0esr-1~deb11u11:140.4.0esr-1~deb12u11:140.4.0esr-1~deb13u11:140.5.0esr-11:140.5.0esr-1~deb11u11:140.5.0esr-1~deb12u11:140.5.0esr-1~deb13u11:140.6.0esr-11:140.6.0esr-1~deb11u11:140.6.0esr-1~deb12u11:140.6.0esr-1~deb13u11:140.7.0esr-11:140.7.0esr-1~deb11u11:140.7.0esr-1~deb12u11:140.7.0esr-1~deb13u11:140.7.1esr-11:140.7.1esr-1~deb11u11:140.7.1esr-1~deb12u11:140.7.1esr-1~deb13u11:140.8.0esr-11:140.8.0esr-1~deb11u11:140.8.0esr-1~deb12u11:140.8.0esr-1~deb13u11:140.9.0esr-11:140.9.0esr-1~deb11u11:140.9.0esr-1~deb12u11:140.9.0esr-1~deb13u11:140.9.1esr-1~deb11u1
1:140.9.1esr-1~deb13u1
thunderbird
Debian:14
 before 1:140.9.1esr-1, plus listed versions
1:128.13.0esr-11:128.14.0esr-11:128.14.0esr-1~deb11u11:128.14.0esr-1~deb12u11:128.14.0esr-1~deb13u1
Show 45 moreShow less
1:129.0~b6-11:130.0~b3-11:132.0~b6-11:135.0-11:136.0-11:137.0-11:138.0-11:140.0.1esr-11:140.1.0esr-11:140.1.1esr-11:140.2.0esr-11:140.3.0esr-11:140.3.0esr-1~deb11u11:140.3.0esr-1~deb12u11:140.3.0esr-1~deb13u11:140.3.1esr-11:140.4.0esr-11:140.4.0esr-1~deb11u11:140.4.0esr-1~deb12u11:140.4.0esr-1~deb13u11:140.5.0esr-11:140.5.0esr-1~deb11u11:140.5.0esr-1~deb12u11:140.5.0esr-1~deb13u11:140.6.0esr-11:140.6.0esr-1~deb11u11:140.6.0esr-1~deb12u11:140.6.0esr-1~deb13u11:140.7.0esr-11:140.7.0esr-1~deb11u11:140.7.0esr-1~deb12u11:140.7.0esr-1~deb13u11:140.7.1esr-11:140.7.1esr-1~deb11u11:140.7.1esr-1~deb12u11:140.7.1esr-1~deb13u11:140.8.0esr-11:140.8.0esr-1~deb11u11:140.8.0esr-1~deb12u11:140.8.0esr-1~deb13u11:140.9.0esr-11:140.9.0esr-1~deb11u11:140.9.0esr-1~deb12u11:140.9.0esr-1~deb13u11:140.9.1esr-1~deb11u1
1:140.9.1esr-1
firefox
Mageia:9
From an advisory covering 3 CVEs
 before 140.9.1-1.mga9
140.9.1-1.mga9
firefox-l10n
Mageia:9
From an advisory covering 3 CVEs
 before 140.9.1-1.mga9
140.9.1-1.mga9
thunderbird
Mageia:9
From an advisory covering 3 CVEs
 before 140.9.1-1.mga9
140.9.1-1.mga9
thunderbird-l10n
Mageia:9
From an advisory covering 3 CVEs
 before 140.9.1-1.mga9
140.9.1-1.mga9
firefox
openEuler:24.03-LTS
From an advisory covering 3 CVEs
 before 140.9.1-1.oe2403
140.9.1-1.oe2403
firefox
openEuler:24.03-LTS-SP1
From an advisory covering 3 CVEs
 before 140.9.1-1.oe2403sp1
140.9.1-1.oe2403sp1
firefox
openEuler:24.03-LTS-SP2
From an advisory covering 3 CVEs
 before 140.9.1-1.oe2403sp2
140.9.1-1.oe2403sp2
firefox
openEuler:24.03-LTS-SP3
From an advisory covering 3 CVEs
 before 140.9.1-1.oe2403sp3
140.9.1-1.oe2403sp3
firefox
openEuler:22.03-LTS-SP4
From an advisory covering 3 CVEs
 before 140.9.1-1.oe2203sp4
140.9.1-1.oe2203sp4
thunderbird
openEuler:24.03-LTS-SP3
From an advisory covering 30 CVEs
 before 140.10.0-1.oe2403sp3
140.10.0-1.oe2403sp3
firefox
Red Hat:rhel_aus:8.2::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_2
0:140.9.1-1.el8_2
firefox-debuginfo
Red Hat:rhel_aus:8.2::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_2
0:140.9.1-1.el8_2
firefox-debugsource
Red Hat:rhel_aus:8.2::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_2
0:140.9.1-1.el8_2
thunderbird
Red Hat:enterprise_linux_eus:10.0
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el10_0
0:140.9.1-1.el10_0
thunderbird-debuginfo
Red Hat:enterprise_linux_eus:10.0
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el10_0
0:140.9.1-1.el10_0
thunderbird-debugsource
Red Hat:enterprise_linux_eus:10.0
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el10_0
0:140.9.1-1.el10_0
thunderbird
Red Hat:rhel_e4s:9.0::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_0
0:140.9.1-1.el9_0
thunderbird-debuginfo
Red Hat:rhel_e4s:9.0::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_0
0:140.9.1-1.el9_0
thunderbird-debugsource
Red Hat:rhel_e4s:9.0::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_0
0:140.9.1-1.el9_0
thunderbird
Red Hat:rhel_eus:9.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_6
0:140.9.1-1.el9_6
thunderbird-debuginfo
Red Hat:rhel_eus:9.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_6
0:140.9.1-1.el9_6
thunderbird-debugsource
Red Hat:rhel_eus:9.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_6
0:140.9.1-1.el9_6
thunderbird
Red Hat:rhel_e4s:9.2::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_2
0:140.9.1-1.el9_2
thunderbird-debuginfo
Red Hat:rhel_e4s:9.2::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_2
0:140.9.1-1.el9_2
thunderbird-debugsource
Red Hat:rhel_e4s:9.2::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_2
0:140.9.1-1.el9_2
thunderbird
Red Hat:rhel_eus:9.4::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_4
0:140.9.1-1.el9_4
thunderbird-debuginfo
Red Hat:rhel_eus:9.4::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_4
0:140.9.1-1.el9_4
thunderbird-debugsource
Red Hat:rhel_eus:9.4::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_4
0:140.9.1-1.el9_4
firefox
Red Hat:rhel_eus:9.4::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_4
0:140.9.1-1.el9_4
firefox-debuginfo
Red Hat:rhel_eus:9.4::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_4
0:140.9.1-1.el9_4
firefox-debugsource
Red Hat:rhel_eus:9.4::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_4
0:140.9.1-1.el9_4
firefox-x11
Red Hat:rhel_eus:9.4::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_4
0:140.9.1-1.el9_4
firefox
Red Hat:rhel_eus:9.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_6
0:140.9.1-1.el9_6
firefox-debuginfo
Red Hat:rhel_eus:9.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_6
0:140.9.1-1.el9_6
firefox-debugsource
Red Hat:rhel_eus:9.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_6
0:140.9.1-1.el9_6
firefox-x11
Red Hat:rhel_eus:9.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_6
0:140.9.1-1.el9_6
firefox
Red Hat:rhel_e4s:9.0::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_0
0:140.9.1-1.el9_0
firefox-debuginfo
Red Hat:rhel_e4s:9.0::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_0
0:140.9.1-1.el9_0
firefox-debugsource
Red Hat:rhel_e4s:9.0::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_0
0:140.9.1-1.el9_0
firefox
Red Hat:rhel_aus:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_4
0:140.9.1-1.el8_4
firefox-debuginfo
Red Hat:rhel_aus:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_4
0:140.9.1-1.el8_4
firefox-debugsource
Red Hat:rhel_aus:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_4
0:140.9.1-1.el8_4
firefox
Red Hat:rhel_eus_long_life:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_4
0:140.9.1-1.el8_4
firefox-debuginfo
Red Hat:rhel_eus_long_life:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_4
0:140.9.1-1.el8_4
firefox-debugsource
Red Hat:rhel_eus_long_life:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_4
0:140.9.1-1.el8_4
firefox
Red Hat:enterprise_linux_eus:10.0
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el10_0
0:140.9.1-1.el10_0
firefox-debuginfo
Red Hat:enterprise_linux_eus:10.0
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el10_0
0:140.9.1-1.el10_0
firefox-debugsource
Red Hat:enterprise_linux_eus:10.0
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el10_0
0:140.9.1-1.el10_0
firefox
Red Hat:rhel_e4s:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_8
0:140.9.1-1.el8_8
firefox-debuginfo
Red Hat:rhel_e4s:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_8
0:140.9.1-1.el8_8
firefox-debugsource
Red Hat:rhel_e4s:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_8
0:140.9.1-1.el8_8
firefox
Red Hat:rhel_tus:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_8
0:140.9.1-1.el8_8
firefox-debuginfo
Red Hat:rhel_tus:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_8
0:140.9.1-1.el8_8
firefox-debugsource
Red Hat:rhel_tus:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_8
0:140.9.1-1.el8_8
firefox
Red Hat:rhel_aus:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_6
0:140.9.1-1.el8_6
firefox-debuginfo
Red Hat:rhel_aus:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_6
0:140.9.1-1.el8_6
firefox-debugsource
Red Hat:rhel_aus:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_6
0:140.9.1-1.el8_6
firefox
Red Hat:rhel_e4s:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_6
0:140.9.1-1.el8_6
firefox-debuginfo
Red Hat:rhel_e4s:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_6
0:140.9.1-1.el8_6
firefox-debugsource
Red Hat:rhel_e4s:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_6
0:140.9.1-1.el8_6
firefox
Red Hat:rhel_tus:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_6
0:140.9.1-1.el8_6
firefox-debuginfo
Red Hat:rhel_tus:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_6
0:140.9.1-1.el8_6
firefox-debugsource
Red Hat:rhel_tus:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_6
0:140.9.1-1.el8_6
firefox
Red Hat:rhel_e4s:9.2::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_2
0:140.9.1-1.el9_2
firefox-debuginfo
Red Hat:rhel_e4s:9.2::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_2
0:140.9.1-1.el9_2
firefox-debugsource
Red Hat:rhel_e4s:9.2::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_2
0:140.9.1-1.el9_2
firefox-x11
Red Hat:rhel_e4s:9.2::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_2
0:140.9.1-1.el9_2
firefox
Red Hat:rhel_els:7
From an advisory covering 5 CVEs
 before 0:140.9.1-2.el7_9
0:140.9.1-2.el7_9
firefox-debuginfo
Red Hat:rhel_els:7
From an advisory covering 5 CVEs
 before 0:140.9.1-2.el7_9
0:140.9.1-2.el7_9
thunderbird
Red Hat:rhel_e4s:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_8
0:140.9.1-1.el8_8
thunderbird-debuginfo
Red Hat:rhel_e4s:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_8
0:140.9.1-1.el8_8
thunderbird-debugsource
Red Hat:rhel_e4s:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_8
0:140.9.1-1.el8_8
thunderbird
Red Hat:rhel_tus:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_8
0:140.9.1-1.el8_8
thunderbird-debuginfo
Red Hat:rhel_tus:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_8
0:140.9.1-1.el8_8
thunderbird-debugsource
Red Hat:rhel_tus:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_8
0:140.9.1-1.el8_8
thunderbird
Red Hat:rhel_aus:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_4
0:140.9.1-1.el8_4
thunderbird-debuginfo
Red Hat:rhel_aus:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_4
0:140.9.1-1.el8_4
thunderbird-debugsource
Red Hat:rhel_aus:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_4
0:140.9.1-1.el8_4
thunderbird
Red Hat:rhel_eus_long_life:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_4
0:140.9.1-1.el8_4
thunderbird-debuginfo
Red Hat:rhel_eus_long_life:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_4
0:140.9.1-1.el8_4
thunderbird-debugsource
Red Hat:rhel_eus_long_life:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_4
0:140.9.1-1.el8_4
thunderbird
Red Hat:rhel_aus:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_6
0:140.9.1-1.el8_6
thunderbird-debuginfo
Red Hat:rhel_aus:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_6
0:140.9.1-1.el8_6
thunderbird-debugsource
Red Hat:rhel_aus:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_6
0:140.9.1-1.el8_6
thunderbird
Red Hat:rhel_e4s:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_6
0:140.9.1-1.el8_6
thunderbird-debuginfo
Red Hat:rhel_e4s:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_6
0:140.9.1-1.el8_6
thunderbird-debugsource
Red Hat:rhel_e4s:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_6
0:140.9.1-1.el8_6
thunderbird
Red Hat:rhel_tus:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_6
0:140.9.1-1.el8_6
thunderbird-debuginfo
Red Hat:rhel_tus:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_6
0:140.9.1-1.el8_6
thunderbird-debugsource
Red Hat:rhel_tus:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_6
0:140.9.1-1.el8_6
firefox
Red Hat:enterprise_linux:9::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_7
0:140.9.1-1.el9_7
firefox-debuginfo
Red Hat:enterprise_linux:9::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_7
0:140.9.1-1.el9_7
firefox-debugsource
Red Hat:enterprise_linux:9::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_7
0:140.9.1-1.el9_7
firefox-x11
Red Hat:enterprise_linux:9::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_7
0:140.9.1-1.el9_7
firefox
Red Hat:enterprise_linux:10.1
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el10_1
0:140.9.1-1.el10_1
firefox-debuginfo
Red Hat:enterprise_linux:10.1
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el10_1
0:140.9.1-1.el10_1
firefox-debugsource
Red Hat:enterprise_linux:10.1
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el10_1
0:140.9.1-1.el10_1
firefox
Red Hat:enterprise_linux:8::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_10
0:140.9.1-1.el8_10
firefox-debuginfo
Red Hat:enterprise_linux:8::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_10
0:140.9.1-1.el8_10
firefox-debugsource
Red Hat:enterprise_linux:8::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_10
0:140.9.1-1.el8_10
thunderbird
Red Hat:enterprise_linux:9::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_7
0:140.9.1-1.el9_7
thunderbird-debuginfo
Red Hat:enterprise_linux:9::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_7
0:140.9.1-1.el9_7
thunderbird-debugsource
Red Hat:enterprise_linux:9::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_7
0:140.9.1-1.el9_7
thunderbird
Red Hat:enterprise_linux:8::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_10
0:140.9.1-1.el8_10
thunderbird-debuginfo
Red Hat:enterprise_linux:8::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_10
0:140.9.1-1.el8_10
thunderbird-debugsource
Red Hat:enterprise_linux:8::appstream
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_10
0:140.9.1-1.el8_10
thunderbird
Red Hat:enterprise_linux:10.1
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el10_1
0:140.9.1-1.el10_1
thunderbird-debuginfo
Red Hat:enterprise_linux:10.1
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el10_1
0:140.9.1-1.el10_1
thunderbird-debugsource
Red Hat:enterprise_linux:10.1
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el10_1
0:140.9.1-1.el10_1
firefox
Rocky Linux:9
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_7
0:140.9.1-1.el9_7
firefox
Rocky Linux:10
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el10_1
0:140.9.1-1.el10_1
firefox
Rocky Linux:8
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_10
0:140.9.1-1.el8_10
thunderbird
Rocky Linux:9
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el9_7
0:140.9.1-1.el9_7
thunderbird
Rocky Linux:8
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el8_10
0:140.9.1-1.el8_10
thunderbird
Rocky Linux:10
From an advisory covering 5 CVEs
 before 0:140.9.1-1.el10_1
0:140.9.1-1.el10_1
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP5-LTSS
From an advisory covering 3 CVEs
 before 140.9.1-112.307.1
140.9.1-112.307.1
MozillaFirefox
SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5
From an advisory covering 3 CVEs
 before 140.9.1-112.307.1
140.9.1-112.307.1
MozillaFirefox
SUSE:Linux Enterprise Module for Desktop Applications 15 SP7
From an advisory covering 3 CVEs
 before 140.9.1-150200.152.228.1
140.9.1-150200.152.228.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS
From an advisory covering 3 CVEs
 before 140.9.1-150200.152.228.1
140.9.1-150200.152.228.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS
From an advisory covering 3 CVEs
 before 140.9.1-150200.152.228.1
140.9.1-150200.152.228.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS
From an advisory covering 3 CVEs
 before 140.9.1-150200.152.228.1
140.9.1-150200.152.228.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS
From an advisory covering 3 CVEs
 before 140.9.1-150200.152.228.1
140.9.1-150200.152.228.1
MozillaFirefox
SUSE:Linux Enterprise Server 15 SP4-LTSS
From an advisory covering 3 CVEs
 before 140.9.1-150200.152.228.1
140.9.1-150200.152.228.1
MozillaFirefox
SUSE:Linux Enterprise Server 15 SP5-LTSS
From an advisory covering 3 CVEs
 before 140.9.1-150200.152.228.1
140.9.1-150200.152.228.1
MozillaFirefox
SUSE:Linux Enterprise Server 15 SP6-LTSS
From an advisory covering 3 CVEs
 before 140.9.1-150200.152.228.1
140.9.1-150200.152.228.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 15 SP4
From an advisory covering 3 CVEs
 before 140.9.1-150200.152.228.1
140.9.1-150200.152.228.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 15 SP5
From an advisory covering 3 CVEs
 before 140.9.1-150200.152.228.1
140.9.1-150200.152.228.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 15 SP6
From an advisory covering 3 CVEs
 before 140.9.1-150200.152.228.1
140.9.1-150200.152.228.1
MozillaThunderbird
SUSE:Linux Enterprise Module for Package Hub 15 SP7
From an advisory covering 3 CVEs
 before 140.9.1-150200.8.266.1
140.9.1-150200.8.266.1
MozillaThunderbird
SUSE:Linux Enterprise Workstation Extension 15 SP7
From an advisory covering 3 CVEs
 before 140.9.1-150200.8.266.1
140.9.1-150200.8.266.1
MozillaFirefox
SUSE:Linux Enterprise Server 16.0
From an advisory covering 3 CVEs
 before 140.9.1-160000.1.1
140.9.1-160000.1.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP applications 16.0
From an advisory covering 3 CVEs
 before 140.9.1-160000.1.1
140.9.1-160000.1.1
mozjs52
Ubuntu:18.04:LTS
 All versions, plus listed versions
52.3.1-0ubuntu352.3.1-7fakesync152.8.1-0ubuntu0.18.04.152.9.1-0ubuntu0.18.04.1
 None known
mozjs38
Ubuntu:18.04:LTS
 All versions, plus listed versions
38.8.0~repack1-0ubuntu138.8.0~repack1-0ubuntu338.8.0~repack1-0ubuntu4
 None known
mozjs68
Ubuntu:20.04:LTS
 All versions, plus listed versions
68.5.0-1~fakesync68.5.0-2~fakesync68.6.0-168.6.0-1ubuntu1
 None known
mozjs52
Ubuntu:20.04:LTS
 All versions, plus listed versions
52.9.1-1build152.9.1-1ubuntu3
 None known
mozjs102
Ubuntu:22.04:LTS
 All versions, plus listed versions
102.11.0-0ubuntu0.22.04.1102.12.0-0ubuntu0.22.04.1102.13.0-0ubuntu0.22.04.1102.15.1-0ubuntu0.22.04.1
 None known
mozjs78
Ubuntu:22.04:LTS
 All versions, plus listed versions
78.13.0-178.15.0-278.15.0-4ubuntu1
 None known
mozjs91
Ubuntu:22.04:LTS
 All versions, plus listed versions
91.5.1-0ubuntu191.6.0-191.6.0-291.7.0-291.10.0-0ubuntu1
 None known
thunderbird
Ubuntu:22.04:LTS
 All versions, plus listed versions
1:91.1.2+build1-0ubuntu11:91.3.0+build2-0ubuntu11:91.3.1+build1-0ubuntu11:91.3.2+build1-0ubuntu11:91.4.0+build1.1-0ubuntu1
Show 34 moreShow less
1:91.4.0+build2-0ubuntu11:91.5.0+build1-0ubuntu11:91.5.1+build1-0ubuntu11:91.6.1+build1-0ubuntu11:91.7.0+build1-0ubuntu11:91.7.0+build2-0ubuntu11:91.8.0+build2-0ubuntu11:91.9.1+build1-0ubuntu0.22.04.11:91.11.0+build2-0ubuntu0.22.04.11:102.2.2+build1-0ubuntu0.22.04.11:102.4.2+build2-0ubuntu0.22.04.11:102.7.1+build2-0ubuntu0.22.04.11:102.8.0+build2-0ubuntu0.22.04.11:102.9.0+build1-0ubuntu0.22.04.11:102.10.0+build2-0ubuntu0.22.04.11:102.11.0+build1-0ubuntu0.22.04.11:102.13.0+build1-0ubuntu0.22.04.11:102.15.0+build1-0ubuntu0.22.04.11:102.15.1+build1-0ubuntu0.22.04.11:115.3.1+build1-0ubuntu0.22.04.21:115.4.1+build1-0ubuntu0.22.04.11:115.5.0+build1-0ubuntu0.22.04.11:115.6.0+build2-0ubuntu0.22.04.11:115.8.1+build1-0ubuntu0.22.04.11:115.9.0+build1-0ubuntu0.22.04.11:115.10.1+build1-0ubuntu0.22.04.11:115.11.0+build2-0ubuntu0.22.04.11:115.12.0+build3-0ubuntu0.22.04.11:115.13.0+build5-0ubuntu0.22.04.11:115.15.0+build1-0ubuntu0.22.04.11:115.16.0+build2-0ubuntu0.22.04.11:115.18.0+build1-0ubuntu0.22.04.11:128.12.0+build1-0ubuntu0.22.04.11:140.7.1+build1-0ubuntu0.22.04.1
 None known
mozjs102
Ubuntu:24.04:LTS
 All versions, plus listed versions
102.15.1-1102.15.1-3ubuntu2
 None known
mozjs115
Ubuntu:24.04:LTS
 All versions, plus listed versions
115.3.0-0ubuntu1115.4.0-2115.5.0-1115.6.0-1115.7.0-4
Show 4 moreShow less
115.8.0-1115.9.0-1115.9.0-1build1115.10.0-1
 None known
MozillaThunderbird
openSUSE:Tumbleweed
From an advisory covering 3 CVEs
 before 140.9.1-1.1
140.9.1-1.1
firefox-esr
openSUSE:Tumbleweed
From an advisory covering 3 CVEs
 before 140.9.1-1.1
140.9.1-1.1
MozillaFirefox
openSUSE:Tumbleweed
From an advisory covering 5 CVEs
 before 149.0.2-1.1
149.0.2-1.1
MozillaFirefox
openSUSE:Leap 16.0
From an advisory covering 3 CVEs
 before 140.9.1-160000.1.1
140.9.1-160000.1.1

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-5731 is a critical vulnerability (CVSS 9.8) in Mozilla Firefox, published April 7, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 29th percentile. Fixed in firefox-esr 140.9.1esr-1~deb12u1.

References

Show 194 moreShow less
This page doesn't list everything

Left out here: 264 versions, 278 references and the rest of 2 source descriptions. The JSON record has them. Left out on purpose, here and in the API, to keep responses small: 5 source records.

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