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CVE-2026-7321

Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component

9.6 CriticalFix available

Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, and Thunderbird 140.10.1.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.26%Up 0.2 points since Apr 29, 2026
90%50%10%1%

What each source reports

CVE List Score used 9.6

Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component

Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, and Thunderbird 140.10.1.

Record
CVE-2026-7321
CVSS 3.1
9.6 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Weakness
CWE-120
Updated
2026-11-02
EUVDEUVD-2026-26058 9.6

Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, and Thunderbird 140.10.1.

Record
EUVD-2026-26058
CVSS 3.1
9.6 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-jjvw-q2ff-g9g3 9.6

Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This...

Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox ESR 140.10.1.

Record
GHSA-jjvw-q2ff-g9g3
CVSS 3.1
9.6 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Weakness
CWE-120
Updated
2026-11-02
NVD 9.6

Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, and Thunderbird 140.10.1.

Record
CVE-2026-7321
CVSS 3.1
9.6 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Weakness
CWE-120
Updated
2026-11-02
OSVDEBIAN-CVE-2026-7321 9.6

Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, and Thunderbird 140.10.1.

Record
DEBIAN-CVE-2026-7321
CVSS 3.1
9.6 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Updated
2026-11-02
OSVOESA-2026-2132 9.6

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):

Information disclosure due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.(CVE-2026-7320)

Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, and Thunderbird 140.10.1.(CVE-2026-7321)

Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. 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 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.(CVE-2026-7322)

Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. 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 150.0.1, Firefox ESR 140.10.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.(CVE-2026-7323)

Record
OESA-2026-2132
CVSS 3.1
9.6 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Updated
2026-11-02
Show 46 moreShow less
OSVOESA-2026-2133 9.6

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):

Information disclosure due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.(CVE-2026-7320)

Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, and Thunderbird 140.10.1.(CVE-2026-7321)

Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. 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 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.(CVE-2026-7322)

Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. 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 150.0.1, Firefox ESR 140.10.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.(CVE-2026-7323)

Record
OESA-2026-2133
CVSS 3.1
9.6 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Updated
2026-11-02
OSVOESA-2026-2134 9.6

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):

Information disclosure due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.(CVE-2026-7320)

Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, and Thunderbird 140.10.1.(CVE-2026-7321)

Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. 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 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.(CVE-2026-7322)

Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. 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 150.0.1, Firefox ESR 140.10.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.(CVE-2026-7323)

Record
OESA-2026-2134
CVSS 3.1
9.6 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Updated
2026-11-02
OSVOESA-2026-2246 9.6

thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

Information disclosure due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.(CVE-2026-7320)

Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, and Thunderbird 140.10.1.(CVE-2026-7321)

Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. 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 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.(CVE-2026-7322)

Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. 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 150.0.1, Firefox ESR 140.10.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.(CVE-2026-7323)

Record
OESA-2026-2246
CVSS 3.1
9.6 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Updated
2026-11-02
OSVOESA-2026-2275 9.6

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):

Information disclosure due to incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.(CVE-2026-7320)

Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, and Thunderbird 140.10.1.(CVE-2026-7321)

Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. 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 150.0.1, Firefox ESR 140.10.1, Firefox ESR 115.35.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.(CVE-2026-7322)

Memory safety bugs present in Thunderbird ESR 140.10.0 and Thunderbird 150.0.0. 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 150.0.1, Firefox ESR 140.10.1, Thunderbird 150.0.1, and Thunderbird 140.10.1.(CVE-2026-7323)

Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, Thunderbird 140.10.1, and Firefox ESR 115.35.2.(CVE-2026-8091)

Record
OESA-2026-2275
CVSS 3.1
9.6 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2026:19153 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2026:19153
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-2026:19157 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:19157
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-2026:19348 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2026:19348
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-2026:19370 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:19370
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-2026:19588 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:19588
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-2026:20586 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2026:20586
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-2026:21743 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:21743
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-2026:22324 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:22324
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-2026:22408 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:22408
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-2026:22409 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:22409
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-2026:22410 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:22410
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-2026:22708 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:22708
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-2026:22712 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:22712
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-2026:22847 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:22847
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-2026:24345 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2026:24345
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-2026:24717 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2026:24717
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-2026:24718 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2026:24718
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-2026:24719 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2026:24719
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-2026:24721 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2026:24721
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-2026:24844 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2026:24844
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-2026:24846 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2026:24846
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-2026:25014 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2026:25014
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-2026:19153 8.8

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

  • firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10.1 and Firefox 150.0.1 (CVE-2026-7323)

  • firefox: thunderbird: Information disclosure due to incorrect boundary conditions in the Audio/Video component (CVE-2026-7320)

  • firefox: thunderbird: Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1 (CVE-2026-7322)

  • firefox: thunderbird: webrtc: Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-7321)

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-2026:19153
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-2026:19348 8.8

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

  • firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6772)

  • firefox: thunderbird: Use-after-free in the JavaScript Engine component (CVE-2026-6754)

  • firefox: thunderbird: Spoofing issue in the DOM: Core & HTML component (CVE-2026-6762)

  • firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6752)

  • firefox: thunderbird: Other issue in the Storage: IndexedDB component (CVE-2026-6770)

  • firefox: thunderbird: Invalid pointer in the JavaScript: WebAssembly component (CVE-2026-6757)

  • firefox: thunderbird: Other issue in the Libraries component in NSS (CVE-2026-6767)

  • firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox 150 and Thunderbird 150 (CVE-2026-6786)

  • firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6753)

  • firefox: thunderbird: Use-after-free in the Widget: Cocoa component (CVE-2026-6759)

  • firefox: thunderbird: Use-after-free in the WebRTC component (CVE-2026-6747)

  • firefox: thunderbird: Information disclosure due to uninitialized memory in the Graphics: Canvas2D component (CVE-2026-6749)

  • firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6766)

  • firefox: thunderbird: Privilege escalation in the Networking component (CVE-2026-6761)

  • firefox: thunderbird: Mitigation bypass in the File Handling component (CVE-2026-6763)

  • firefox: thunderbird: Privilege escalation in the Graphics: WebRender component (CVE-2026-6750)

  • firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6748)

  • firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox 150 and Thunderbird 150 (CVE-2026-6785)

  • firefox: thunderbird: Mitigation bypass in the DOM: Security component (CVE-2026-6771)

  • firefox: thunderbird: Incorrect boundary conditions in the DOM: Device Interfaces component (CVE-2026-6764)

  • firefox: thunderbird: Information disclosure in the Form Autofill component (CVE-2026-6765)

  • firefox: thunderbird: Privilege escalation in the Debugger component (CVE-2026-6769)

  • firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6751)

  • firefox: thunderbird: Incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-6776)

  • firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-6746)

  • firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10.1 and Firefox 150.0.1 (CVE-2026-7323)

  • firefox: thunderbird: Information disclosure due to incorrect boundary conditions in the Audio/Video component (CVE-2026-7320)

  • firefox: thunderbird: Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1 (CVE-2026-7322)

  • firefox: thunderbird: webrtc: Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-7321)

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-2026:19348
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-2026:19370 8.8

Important: firefox security update

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

Security Fix(es):

  • firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10.1 and Firefox 150.0.1 (CVE-2026-7323)

  • firefox: thunderbird: Information disclosure due to incorrect boundary conditions in the Audio/Video component (CVE-2026-7320)

  • firefox: thunderbird: Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1 (CVE-2026-7322)

  • firefox: thunderbird: webrtc: Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-7321)

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-2026:19370
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-2026:19588 8.8

Important: firefox security update

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

Security Fix(es):

  • firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10.1 and Firefox 150.0.1 (CVE-2026-7323)

  • firefox: thunderbird: Information disclosure due to incorrect boundary conditions in the Audio/Video component (CVE-2026-7320)

  • firefox: thunderbird: Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1 (CVE-2026-7322)

  • firefox: thunderbird: webrtc: Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-7321)

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-2026:19588
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-2026:20586 8.8

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

  • firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10.1 and Firefox 150.0.1 (CVE-2026-7323)

  • firefox: thunderbird: Information disclosure due to incorrect boundary conditions in the Audio/Video component (CVE-2026-7320)

  • firefox: thunderbird: Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1 (CVE-2026-7322)

  • firefox: thunderbird: webrtc: Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-7321)

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-2026:20586
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-2026:19153 No score

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

  • firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10.1 and Firefox 150.0.1 (CVE-2026-7323)
  • firefox: thunderbird: Information disclosure due to incorrect boundary conditions in the Audio/Video component (CVE-2026-7320)
  • firefox: thunderbird: Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1 (CVE-2026-7322)
  • firefox: thunderbird: webrtc: Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-7321)

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-2026:19153
Updated
2026-11-06
OSVALSA-2026:19157 No score

Important: firefox security update

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

Security Fix(es):

  • firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10.1 and Firefox 150.0.1 (CVE-2026-7323)
  • firefox: thunderbird: Information disclosure due to incorrect boundary conditions in the Audio/Video component (CVE-2026-7320)
  • firefox: thunderbird: Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1 (CVE-2026-7322)
  • firefox: thunderbird: webrtc: Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-7321)

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-2026:19157
Updated
2026-11-06
OSVALSA-2026:19348 No score

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

  • firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6772)
  • firefox: thunderbird: Use-after-free in the JavaScript Engine component (CVE-2026-6754)
  • firefox: thunderbird: Spoofing issue in the DOM: Core & HTML component (CVE-2026-6762)
  • firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6752)
  • firefox: thunderbird: Other issue in the Storage: IndexedDB component (CVE-2026-6770)
  • firefox: thunderbird: Invalid pointer in the JavaScript: WebAssembly component (CVE-2026-6757)
  • firefox: thunderbird: Other issue in the Libraries component in NSS (CVE-2026-6767)
  • firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox 150 and Thunderbird 150 (CVE-2026-6786)
  • firefox: thunderbird: Incorrect boundary conditions in the WebRTC component (CVE-2026-6753)
  • firefox: thunderbird: Use-after-free in the Widget: Cocoa component (CVE-2026-6759)
  • firefox: thunderbird: Use-after-free in the WebRTC component (CVE-2026-6747)
  • firefox: thunderbird: Information disclosure due to uninitialized memory in the Graphics: Canvas2D component (CVE-2026-6749)
  • firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS (CVE-2026-6766)
  • firefox: thunderbird: Privilege escalation in the Networking component (CVE-2026-6761)
  • firefox: thunderbird: Mitigation bypass in the File Handling component (CVE-2026-6763)
  • firefox: thunderbird: Privilege escalation in the Graphics: WebRender component (CVE-2026-6750)
  • firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6748)
  • firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox 150 and Thunderbird 150 (CVE-2026-6785)
  • firefox: thunderbird: Mitigation bypass in the DOM: Security component (CVE-2026-6771)
  • firefox: thunderbird: Incorrect boundary conditions in the DOM: Device Interfaces component (CVE-2026-6764)
  • firefox: thunderbird: Information disclosure in the Form Autofill component (CVE-2026-6765)
  • firefox: thunderbird: Privilege escalation in the Debugger component (CVE-2026-6769)
  • firefox: thunderbird: Uninitialized memory in the Audio/Video: Web Codecs component (CVE-2026-6751)
  • firefox: thunderbird: Incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-6776)
  • firefox: thunderbird: Use-after-free in the DOM: Core & HTML component (CVE-2026-6746)
  • firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10.1 and Firefox 150.0.1 (CVE-2026-7323)
  • firefox: thunderbird: Information disclosure due to incorrect boundary conditions in the Audio/Video component (CVE-2026-7320)
  • firefox: thunderbird: Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1 (CVE-2026-7322)
  • firefox: thunderbird: webrtc: Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-7321)

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-2026:19348
Updated
2026-11-06
OSVALSA-2026:19370 No score

Important: firefox security update

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

Security Fix(es):

  • firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10.1 and Firefox 150.0.1 (CVE-2026-7323)
  • firefox: thunderbird: Information disclosure due to incorrect boundary conditions in the Audio/Video component (CVE-2026-7320)
  • firefox: thunderbird: Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1 (CVE-2026-7322)
  • firefox: thunderbird: webrtc: Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-7321)

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-2026:19370
Updated
2026-11-06
OSVALSA-2026:19588 No score

Important: firefox security update

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

Security Fix(es):

  • firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10.1 and Firefox 150.0.1 (CVE-2026-7323)
  • firefox: thunderbird: Information disclosure due to incorrect boundary conditions in the Audio/Video component (CVE-2026-7320)
  • firefox: thunderbird: Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1 (CVE-2026-7322)
  • firefox: thunderbird: webrtc: Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-7321)

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-2026:19588
Updated
2026-11-06
OSVALSA-2026:20586 No score

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

  • firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 140.10.1 and Firefox 150.0.1 (CVE-2026-7323)
  • firefox: thunderbird: Information disclosure due to incorrect boundary conditions in the Audio/Video component (CVE-2026-7320)
  • firefox: thunderbird: Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1 (CVE-2026-7322)
  • firefox: thunderbird: webrtc: Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component (CVE-2026-7321)

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-2026:20586
Updated
2026-11-06
OSVCLSA-2026-1781619768 No score

thunderbird: Fix of CVE-2026-7321

  • CVE-2026-7321: remove the custom memory allocator from the WebRTC nICEr/nrappkit transport (r_strdup/RMALLOC/RFREE) that had incorrect size boundary conditions and replace all uses with standard strdup/malloc/free to prevent a buffer overflow
Record
CLSA-2026-1781619768
Updated
2026-11-02
OSVopenSUSE-SU-2026:10661-1 No score

firefox-esr-140.10.1-1.1 on GA media

These are all security issues fixed in the firefox-esr-140.10.1-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:10661-1
Updated
2026-11-02
OSVopenSUSE-SU-2026:10687-1 No score

MozillaThunderbird-140.10.1-1.1 on GA media

These are all security issues fixed in the MozillaThunderbird-140.10.1-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:10687-1
Updated
2026-11-02
OSVopenSUSE-SU-2026:20667-1 No score

Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues:

Update to Firefox Extended Support Release 140.10.1 ESR.

  • MFSA 2026-36 (bsc#1263110)
    • CVE-2026-7320: Information disclosure due to incorrect boundary conditions in the Audio/Video component.
    • CVE-2026-7321: Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component.
    • CVE-2026-7322: Memory safety bugs fixed in Firefox ESR 115.35.1, Firefox ESR 140.10.1, Thunderbird ESR 140.10.1, Firefox 150.0.1 and Thunderbird 150.0.1
    • CVE-2026-7323: Memory safety bugs fixed in Firefox ESR 140.10.1, Thunderbird ESR 140.10.1, Firefox 150.0.1 and Thunderbird 150.0.1
Record
openSUSE-SU-2026:20667-1
Updated
2026-11-02
OSVopenSUSE-SU-2026:21168-1 No score

Security update for MozillaThunderbird

This update for MozillaThunderbird fixes the following issues:

Changes in MozillaThunderbird:

  • Mozilla Thunderbird 140.12.0 ESR MFSA 2026-61 (bsc#1268071)

    • CVE-2026-12289 (bmo#2023443) Privilege escalation in the Graphics: WebRender component
    • CVE-2026-12290 (bmo#2024852) Memory safety bug fixed in Thunderbird ESR 140.12
    • CVE-2026-12291 (bmo#2036929) Use-after-free in the Networking: HTTP component
    • CVE-2026-12292 (bmo#2038465) Incorrect boundary conditions in the Web Audio component
    • CVE-2026-12294 (bmo#2039873) Sandbox escape in the DOM: Workers component
    • CVE-2026-12295 (bmo#2040160) Sandbox escape in the DOM: Navigation component
    • CVE-2026-12298 (bmo#2041981) Memory safety bug fixed in Thunderbird ESR 140.12
    • CVE-2026-12296 (bmo#2040515) Sandbox escape in the Security: Process Sandboxing component
    • CVE-2026-12297 (bmo#2041610) Sandbox escape due to incorrect boundary conditions in the Networking component
    • CVE-2026-12299 (bmo#2043139) JIT miscompilation in the DOM: Core & HTML component
    • CVE-2026-12329 (bmo#2044738) Memory safety bug fixed in Thunderbird ESR 140.12
    • CVE-2026-12302 (bmo#2034489) Mitigation bypass in the DOM: Security component
    • CVE-2026-12304 (bmo#2034944) Same-origin policy bypass in the Networking: Cookies component
    • CVE-2026-12305 (bmo#2037290) Memory safety bug fixed in Thunderbird ESR 140.12
    • CVE-2026-12306 (bmo#2037323) Memory safety bug fixed in Thunderbird ESR 140.12
    • CVE-2026-12307 (bmo#2038133) Memory safety bug fixed in Thunderbird ESR 140.12
    • CVE-2026-12308 (bmo#2038302) Memory safety bug fixed in Thunderbird ESR 140.12
    • CVE-2026-12309 (bmo#2038476) Memory safety bug fixed in Thunderbird ESR 140.12
    • CVE-2026-12310 (bmo#2039707) Memory safety bug fixed in Thunderbird ESR 140.12
    • CVE-2026-12311 (bmo#2040177) Information disclosure, sandbox escape in the Security: Process Sandboxing component
    • CVE-2026-12312 (bmo#2040383) Memory safety bug fixed in Thunderbird ESR 140.12
    • CVE-2026-12313 (bmo#2040477) Information disclosure, sandbox escape in the Security: Process Sandboxing component
    • CVE-2026-12314 (bmo#2041856) Memory safety bug fixed in Thunderbird ESR 140.12
    • CVE-2026-12315 (bmo#2042058) Mitigation bypass in the DOM: Security component
    • CVE-2026-12330 (bmo#2029326) Incorrect boundary conditions in the Internationalization component
    • CVE-2026-12324 (bmo#2038444) Incorrect boundary conditions in the Graphics: CanvasWebGL component
    • CVE-2026-12325 (bmo#2039443) Denial-of-service in the Graphics: ImageLib component
    • CVE-2026-12327 (bmo#2011842, bmo#2023902, bmo#2025512, bmo#2027312, bmo#2029444, bmo#2036571, bmo#2036900, bmo#2036936, bmo#2037995, bmo#2038551, bmo#2040717, bmo#2042724) Memory safety bugs fixed in Firefox ESR 140.12, Thunderbird ESR 140.12, Firefox 152 and Thunderbird 152
    • CVE-2026-12328 (bmo#2029402, bmo#2038477, bmo#2039726, bmo#2041373, bmo#2042268, bmo#2042451, bmo#2042782, bmo#2042858, bmo#2042929, bmo#2042965, bmo#2043213) Memory safety bugs fixed in Firefox ESR 115.37, Firefox ESR 140.12, Thunderbird ESR 140.12, Firefox 152 and Thunderbird 152

  • Mozilla Thunderbird 140.11.0 ESR MFSA 2026-51 (bsc#1265212)

    • CVE-2026-8946 (bmo#2029070) Incorrect boundary conditions in the Audio/Video: Web Codecs component
    • CVE-2026-8388 (bmo#2036978) Incorrect boundary conditions in the JavaScript Engine: JIT component
    • CVE-2026-8947 (bmo#2038439) Use-after-free in the DOM: Bindings (WebIDL) component
    • CVE-2026-8391 (bmo#2038575) Other issue in the JavaScript Engine component
    • CVE-2026-8401 (bmo#2038679) Sandbox escape in the Profile Backup component
    • CVE-2026-8949 (bmo#1355639) Integer overflow in the Widget: Win32 component
    • CVE-2026-8950 (bmo#1965430) Same-origin policy bypass in the…
Record
openSUSE-SU-2026:21168-1
Updated
2026-11-02
OSVSUSE-SU-2026:1741-1 No score

Security update for MozillaThunderbird

This update for MozillaThunderbird fixes the following issues

Updated to Mozilla Thunderbird 140.10.1:

MFSA 2026-34 (bsc#1262230):

  • CVE-2026-6746: Use-after-free in the DOM: Core & HTML component.
  • CVE-2026-6747: Use-after-free in the WebRTC component.
  • CVE-2026-6748: Uninitialized memory in the Audio/Video: Web Codecs component.
  • CVE-2026-6749: Information disclosure due to uninitialized memory in the Graphics: Canvas2D component.
  • CVE-2026-6750: Privilege escalation in the Graphics: WebRender component.
  • CVE-2026-6751: Uninitialized memory in the Audio/Video: Web Codecs component.
  • CVE-2026-6752: Incorrect boundary conditions in the WebRTC component.
  • CVE-2026-6753: Incorrect boundary conditions in the WebRTC component.
  • CVE-2026-6754: Use-after-free in the JavaScript Engine component.
  • CVE-2026-6757: Invalid pointer in the JavaScript: WebAssembly component.
  • CVE-2026-6759: Use-after-free in the Widget: Cocoa component.
  • CVE-2026-6761: Privilege escalation in the Networking component.
  • CVE-2026-6762: Spoofing issue in the DOM: Core & HTML component.
  • CVE-2026-6763: Mitigation bypass in the File Handling component.
  • CVE-2026-6764: Incorrect boundary conditions in the DOM: Device Interfaces component.
  • CVE-2026-6765: Information disclosure in the Form Autofill component.
  • CVE-2026-6766: Incorrect boundary conditions in the Libraries component in NSS.
  • CVE-2026-6767: Other issue in the Libraries component in NSS.
  • CVE-2026-6769: Privilege escalation in the Debugger component.
  • CVE-2026-6770: Other issue in the Storage: IndexedDB component.
  • CVE-2026-6771: Mitigation bypass in the DOM: Security component.
  • CVE-2026-6772: Incorrect boundary conditions in the Libraries component in NSS.
  • CVE-2026-6776: Incorrect boundary conditions in the WebRTC: Networking component.
  • CVE-2026-6785: Memory safety bugs fixed in Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox 150 and Thunderbird 150.
  • CVE-2026-6786: Memory safety bugs fixed in Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox 150 and Thunderbird 150.

MFSA 2026-39 (bsc#1263110):

  • CVE-2026-7320: Information disclosure due to incorrect boundary conditions in the Audio/Video component.
  • CVE-2026-7321: Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component.
  • CVE-2026-7322: Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1.
  • CVE-2026-7323: Memory safety bugs fixed in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1.

Other updates and bugfixes:

  • Fixed: Newly translated strings were not available in Thunderbird.
Record
SUSE-SU-2026:1741-1
Updated
2026-11-02
OSVSUSE-SU-2026:1829-1 No score

Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues

Updated to Firefox Extended Support Release 140.10.1 ESR (bsc#1263110,MFSA 2026-36):

  • CVE-2026-7320: Information disclosure due to incorrect boundary conditions in the Audio/Video component.
  • CVE-2026-7321: Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component.
  • CVE-2026-7322: Memory safety bugs fixed in Firefox ESR 115.35.1, Firefox ESR 140.10.1 and Firefox 150.0.1.
  • CVE-2026-7323: Memory safety bugs fixed in Firefox ESR 140.10.1 and Firefox 150.0.1.
Record
SUSE-SU-2026:1829-1
Updated
2026-11-02
OSVSUSE-SU-2026:1830-1 No score

Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues

Updated to Firefox Extended Support Release 140.10.2 ESR (bsc#1264378,MFSA 2026-41):

  • CVE-2026-8090: Use-after-free in the DOM: Networking component.
  • CVE-2026-8092: Memory safety bugs fixed in Firefox ESR 115.35.2, Firefox ESR 140.10.2 and Firefox 150.0.2.
  • CVE-2026-8094: Other issue in the WebRTC component.

Updated to Firefox Extended Support Release 140.10.1 ESR (bsc#1263110,MFSA 2026-36):

  • CVE-2026-7320: Information disclosure due to incorrect boundary conditions in the Audio/Video component.
  • CVE-2026-7321: Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component.
  • CVE-2026-7322: Memory safety bugs fixed in Firefox ESR 115.35.1, Firefox ESR 140.10.1 and Firefox 150.0.1.
  • CVE-2026-7323: Memory safety bugs fixed in Firefox ESR 140.10.1 and Firefox 150.0.1.
  • CVE-2026-8091: Incorrect boundary conditions in the Audio/Video: Playback component.
Record
SUSE-SU-2026:1830-1
Updated
2026-11-02
OSVSUSE-SU-2026:21541-1 No score

Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues:

Update to Firefox Extended Support Release 140.10.1 ESR.

  • MFSA 2026-36 (bsc#1263110)
    • CVE-2026-7320: Information disclosure due to incorrect boundary conditions in the Audio/Video component.
    • CVE-2026-7321: Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component.
    • CVE-2026-7322: Memory safety bugs fixed in Firefox ESR 115.35.1, Firefox ESR 140.10.1, Thunderbird ESR 140.10.1, Firefox 150.0.1 and Thunderbird 150.0.1
    • CVE-2026-7323: Memory safety bugs fixed in Firefox ESR 140.10.1, Thunderbird ESR 140.10.1, Firefox 150.0.1 and Thunderbird 150.0.1
Record
SUSE-SU-2026:21541-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
thunderbird
AlmaLinux:10
From an advisory covering 4 CVEs
 before 140.10.1-1.el10_2.alma.1
140.10.1-1.el10_2.alma.1
firefox
AlmaLinux:10
From an advisory covering 4 CVEs
 before 140.10.1-1.el10_2
140.10.1-1.el10_2
thunderbird
AlmaLinux:9
From an advisory covering 29 CVEs
 before 140.10.1-1.el9_8.alma.1
140.10.1-1.el9_8.alma.1
firefox
AlmaLinux:9
From an advisory covering 4 CVEs
 before 140.10.1-1.el9_8.alma.1
140.10.1-1.el9_8.alma.1
firefox-x11
AlmaLinux:9
From an advisory covering 4 CVEs
 before 140.10.1-1.el9_8.alma.1
140.10.1-1.el9_8.alma.1
firefox
AlmaLinux:8
From an advisory covering 5 CVEs
 before 140.10.1-1.el8_10.alma.1
140.10.1-1.el8_10.alma.1
thunderbird
AlmaLinux:8
From an advisory covering 5 CVEs
 before 140.10.1-1.el8_10.alma.1
140.10.1-1.el8_10.alma.1
thunderbird
TuxCare:AlmaLinux:9.2
 before 115.4.1-1.el9_2.alma.tuxcare.els11
115.4.1-1.el9_2.alma.tuxcare.els11
firefox-esr
Debian:12
 before 140.10.1esr-1~deb12u1, plus listed versions
102.11.0esr-1102.12.0esr-1102.12.0esr-1~deb10u1102.12.0esr-1~deb11u1102.12.0esr-1~deb12u1
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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
140.10.1esr-1~deb12u1
firefox-esr
Debian:13
 before 140.10.1esr-1~deb13u1, plus listed versions
128.13.0esr-1128.14.0esr-1128.14.0esr-1~deb11u1128.14.0esr-1~deb12u1128.14.0esr-1~deb13u1
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140.10.0esr-1140.10.0esr-1~deb11u1140.10.0esr-1~deb12u1140.10.0esr-1~deb13u1140.10.1esr-1~deb11u1140.10.1esr-1~deb12u1140.3.0esr-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-1140.9.1esr-1~deb11u1140.9.1esr-1~deb12u1140.9.1esr-1~deb13u1
140.10.1esr-1~deb13u1
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Affected packages
PackageAffectedFixed
firefox-esr
Debian:14
 before 140.10.1esr-1, plus listed versions
128.13.0esr-1128.14.0esr-1128.14.0esr-1~deb11u1128.14.0esr-1~deb12u1128.14.0esr-1~deb13u1
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140.10.0esr-1140.10.0esr-1~deb11u1140.10.0esr-1~deb12u1140.10.0esr-1~deb13u1140.10.1esr-1~deb11u1140.10.1esr-1~deb12u1140.10.1esr-1~deb13u1140.3.0esr-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-1140.9.1esr-1~deb11u1140.9.1esr-1~deb12u1
140.10.1esr-1
thunderbird
Debian:12
 before 1:140.10.1esr-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
1:140.10.1esr-1~deb12u1
thunderbird
Debian:13
 before 1:140.10.1esr-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
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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-11:140.10.0esr-11:140.10.0esr-1~deb11u11:140.10.0esr-1~deb12u11:140.10.0esr-1~deb13u11:140.10.1esr-1~deb11u11:140.10.1esr-1~deb12u11:140.2.0esr-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~deb12u1
1:140.10.1esr-1~deb13u1
thunderbird
Debian:14
 before 1:140.10.1esr-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
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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-11:140.10.0esr-11:140.10.0esr-1~deb11u11:140.10.0esr-1~deb12u11:140.10.0esr-1~deb13u11:140.10.1esr-1~deb11u11:140.10.1esr-1~deb12u11:140.10.1esr-1~deb13u11:140.2.0esr-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~deb11u1
1:140.10.1esr-1
firefox
openEuler:24.03-LTS
From an advisory covering 4 CVEs
 before 140.10.1-1.oe2403
140.10.1-1.oe2403
firefox
openEuler:24.03-LTS-SP1
From an advisory covering 4 CVEs
 before 140.10.1-1.oe2403sp1
140.10.1-1.oe2403sp1
firefox
openEuler:24.03-LTS-SP3
From an advisory covering 4 CVEs
 before 140.10.1-1.oe2403sp3
140.10.1-1.oe2403sp3
thunderbird
openEuler:24.03-LTS-SP3
From an advisory covering 4 CVEs
 before 140.10.1-1.oe2403sp3
140.10.1-1.oe2403sp3
firefox
openEuler:22.03-LTS-SP4
From an advisory covering 5 CVEs
 before 140.10.1-2.oe2203sp4
140.10.1-2.oe2203sp4
thunderbird
Red Hat:enterprise_linux:10.2
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el10_2
0:140.10.1-1.el10_2
thunderbird-debuginfo
Red Hat:enterprise_linux:10.2
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el10_2
0:140.10.1-1.el10_2
thunderbird-debugsource
Red Hat:enterprise_linux:10.2
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el10_2
0:140.10.1-1.el10_2
firefox
Red Hat:enterprise_linux:10.2
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el10_2
0:140.10.1-1.el10_2
firefox-debuginfo
Red Hat:enterprise_linux:10.2
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el10_2
0:140.10.1-1.el10_2
firefox-debugsource
Red Hat:enterprise_linux:10.2
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el10_2
0:140.10.1-1.el10_2
thunderbird
Red Hat:enterprise_linux:9::appstream
From an advisory covering 30 CVEs
 before 0:140.10.1-1.el9_8
0:140.10.1-1.el9_8
thunderbird-debuginfo
Red Hat:enterprise_linux:9::appstream
From an advisory covering 30 CVEs
 before 0:140.10.1-1.el9_8
0:140.10.1-1.el9_8
thunderbird-debugsource
Red Hat:enterprise_linux:9::appstream
From an advisory covering 30 CVEs
 before 0:140.10.1-1.el9_8
0:140.10.1-1.el9_8
firefox
Red Hat:enterprise_linux:9::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_8
0:140.10.1-1.el9_8
firefox-debuginfo
Red Hat:enterprise_linux:9::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_8
0:140.10.1-1.el9_8
firefox-debugsource
Red Hat:enterprise_linux:9::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_8
0:140.10.1-1.el9_8
firefox-x11
Red Hat:enterprise_linux:9::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_8
0:140.10.1-1.el9_8
firefox
Red Hat:enterprise_linux:8::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_10
0:140.10.1-1.el8_10
firefox-debuginfo
Red Hat:enterprise_linux:8::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_10
0:140.10.1-1.el8_10
firefox-debugsource
Red Hat:enterprise_linux:8::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_10
0:140.10.1-1.el8_10
thunderbird
Red Hat:enterprise_linux:8::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_10
0:140.10.1-1.el8_10
thunderbird-debuginfo
Red Hat:enterprise_linux:8::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_10
0:140.10.1-1.el8_10
thunderbird-debugsource
Red Hat:enterprise_linux:8::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_10
0:140.10.1-1.el8_10
firefox
Red Hat:rhel_e4s:9.0::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_0
0:140.10.1-1.el9_0
firefox-debuginfo
Red Hat:rhel_e4s:9.0::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_0
0:140.10.1-1.el9_0
firefox-debugsource
Red Hat:rhel_e4s:9.0::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_0
0:140.10.1-1.el9_0
firefox
Red Hat:rhel_e4s:9.4::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_4
0:140.10.1-1.el9_4
firefox-debuginfo
Red Hat:rhel_e4s:9.4::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_4
0:140.10.1-1.el9_4
firefox-debugsource
Red Hat:rhel_e4s:9.4::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_4
0:140.10.1-1.el9_4
firefox-x11
Red Hat:rhel_e4s:9.4::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_4
0:140.10.1-1.el9_4
firefox
Red Hat:enterprise_linux_eus:10.0
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el10_0
0:140.10.1-1.el10_0
firefox-debuginfo
Red Hat:enterprise_linux_eus:10.0
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el10_0
0:140.10.1-1.el10_0
firefox-debugsource
Red Hat:enterprise_linux_eus:10.0
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el10_0
0:140.10.1-1.el10_0
firefox
Red Hat:rhel_eus:9.6::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_6
0:140.10.1-1.el9_6
firefox-debuginfo
Red Hat:rhel_eus:9.6::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_6
0:140.10.1-1.el9_6
firefox-debugsource
Red Hat:rhel_eus:9.6::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_6
0:140.10.1-1.el9_6
firefox-x11
Red Hat:rhel_eus:9.6::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_6
0:140.10.1-1.el9_6
firefox
Red Hat:rhel_e4s:9.2::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_2
0:140.10.1-1.el9_2
firefox-debuginfo
Red Hat:rhel_e4s:9.2::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_2
0:140.10.1-1.el9_2
firefox-debugsource
Red Hat:rhel_e4s:9.2::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_2
0:140.10.1-1.el9_2
firefox-x11
Red Hat:rhel_e4s:9.2::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_2
0:140.10.1-1.el9_2
firefox
Red Hat:rhel_els:7
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el7_9
0:140.10.1-1.el7_9
firefox-debuginfo
Red Hat:rhel_els:7
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el7_9
0:140.10.1-1.el7_9
firefox
Red Hat:rhel_aus:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_4
0:140.10.1-1.el8_4
firefox-debuginfo
Red Hat:rhel_aus:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_4
0:140.10.1-1.el8_4
firefox-debugsource
Red Hat:rhel_aus:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_4
0:140.10.1-1.el8_4
firefox
Red Hat:rhel_eus_long_life:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_4
0:140.10.1-1.el8_4
firefox-debuginfo
Red Hat:rhel_eus_long_life:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_4
0:140.10.1-1.el8_4
firefox-debugsource
Red Hat:rhel_eus_long_life:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_4
0:140.10.1-1.el8_4
firefox
Red Hat:rhel_e4s:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_8
0:140.10.1-1.el8_8
firefox-debuginfo
Red Hat:rhel_e4s:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_8
0:140.10.1-1.el8_8
firefox-debugsource
Red Hat:rhel_e4s:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_8
0:140.10.1-1.el8_8
firefox
Red Hat:rhel_tus:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_8
0:140.10.1-1.el8_8
firefox-debuginfo
Red Hat:rhel_tus:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_8
0:140.10.1-1.el8_8
firefox-debugsource
Red Hat:rhel_tus:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_8
0:140.10.1-1.el8_8
firefox
Red Hat:rhel_aus:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_6
0:140.10.1-1.el8_6
firefox-debuginfo
Red Hat:rhel_aus:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_6
0:140.10.1-1.el8_6
firefox-debugsource
Red Hat:rhel_aus:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_6
0:140.10.1-1.el8_6
firefox
Red Hat:rhel_eus_long_life:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_6
0:140.10.1-1.el8_6
firefox-debuginfo
Red Hat:rhel_eus_long_life:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_6
0:140.10.1-1.el8_6
firefox-debugsource
Red Hat:rhel_eus_long_life:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_6
0:140.10.1-1.el8_6
thunderbird
Red Hat:rhel_e4s:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_8
0:140.10.1-1.el8_8
thunderbird-debuginfo
Red Hat:rhel_e4s:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_8
0:140.10.1-1.el8_8
thunderbird-debugsource
Red Hat:rhel_e4s:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_8
0:140.10.1-1.el8_8
thunderbird
Red Hat:rhel_tus:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_8
0:140.10.1-1.el8_8
thunderbird-debuginfo
Red Hat:rhel_tus:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_8
0:140.10.1-1.el8_8
thunderbird-debugsource
Red Hat:rhel_tus:8.8::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_8
0:140.10.1-1.el8_8
thunderbird
Red Hat:rhel_aus:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_4
0:140.10.1-1.el8_4
thunderbird-debuginfo
Red Hat:rhel_aus:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_4
0:140.10.1-1.el8_4
thunderbird-debugsource
Red Hat:rhel_aus:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_4
0:140.10.1-1.el8_4
thunderbird
Red Hat:rhel_eus_long_life:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_4
0:140.10.1-1.el8_4
thunderbird-debuginfo
Red Hat:rhel_eus_long_life:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_4
0:140.10.1-1.el8_4
thunderbird-debugsource
Red Hat:rhel_eus_long_life:8.4::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_4
0:140.10.1-1.el8_4
thunderbird
Red Hat:enterprise_linux_eus:10.0
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el10_0
0:140.10.1-1.el10_0
thunderbird-debuginfo
Red Hat:enterprise_linux_eus:10.0
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el10_0
0:140.10.1-1.el10_0
thunderbird-debugsource
Red Hat:enterprise_linux_eus:10.0
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el10_0
0:140.10.1-1.el10_0
thunderbird
Red Hat:rhel_eus:9.6::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_6
0:140.10.1-1.el9_6
thunderbird-debuginfo
Red Hat:rhel_eus:9.6::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_6
0:140.10.1-1.el9_6
thunderbird-debugsource
Red Hat:rhel_eus:9.6::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_6
0:140.10.1-1.el9_6
thunderbird
Red Hat:rhel_e4s:9.2::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_2
0:140.10.1-1.el9_2
thunderbird-debuginfo
Red Hat:rhel_e4s:9.2::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_2
0:140.10.1-1.el9_2
thunderbird-debugsource
Red Hat:rhel_e4s:9.2::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_2
0:140.10.1-1.el9_2
thunderbird
Red Hat:rhel_e4s:9.4::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_4
0:140.10.1-1.el9_4
thunderbird-debuginfo
Red Hat:rhel_e4s:9.4::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_4
0:140.10.1-1.el9_4
thunderbird-debugsource
Red Hat:rhel_e4s:9.4::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el9_4
0:140.10.1-1.el9_4
thunderbird
Red Hat:rhel_aus:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_6
0:140.10.1-1.el8_6
thunderbird-debuginfo
Red Hat:rhel_aus:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_6
0:140.10.1-1.el8_6
thunderbird-debugsource
Red Hat:rhel_aus:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_6
0:140.10.1-1.el8_6
thunderbird
Red Hat:rhel_eus_long_life:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_6
0:140.10.1-1.el8_6
thunderbird-debuginfo
Red Hat:rhel_eus_long_life:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_6
0:140.10.1-1.el8_6
thunderbird-debugsource
Red Hat:rhel_eus_long_life:8.6::appstream
From an advisory covering 5 CVEs
 before 0:140.10.1-1.el8_6
0:140.10.1-1.el8_6
thunderbird
Rocky Linux:10
From an advisory covering 4 CVEs
 before 0:140.10.1-1.el10_2
0:140.10.1-1.el10_2
thunderbird
Rocky Linux:9
From an advisory covering 29 CVEs
 before 0:140.10.1-1.el9_8
0:140.10.1-1.el9_8
firefox
Rocky Linux:9
From an advisory covering 4 CVEs
 before 0:140.10.1-1.el9_8
0:140.10.1-1.el9_8
firefox
Rocky Linux:8
From an advisory covering 4 CVEs
 before 0:140.10.1-1.el8_10
0:140.10.1-1.el8_10
thunderbird
Rocky Linux:8
From an advisory covering 4 CVEs
 before 0:140.10.1-1.el8_10
0:140.10.1-1.el8_10
firefox-esr
openSUSE:Tumbleweed
From an advisory covering 4 CVEs
 before 140.10.1-1.1
140.10.1-1.1
MozillaThunderbird
openSUSE:Tumbleweed
From an advisory covering 4 CVEs
 before 140.10.1-1.1
140.10.1-1.1
MozillaThunderbird
openSUSE:Leap 16.0
From an advisory covering 56 CVEs
 before 140.12.0-bp160.1.1
140.12.0-bp160.1.1

History

History
RecordedChangedSources
referencesOSV
affected, referencesOSV
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-2026-7321 is a critical vulnerability (CVSS 9.6) in Mozilla Firefox, published April 28, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.26%, the 17th percentile. Fixed in thunderbird 115.4.1-1.el9_2.alma.tuxcare.els11.

References

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Left out here: 297 versions, 114 references and the rest of 1 source description. The JSON record has them.

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