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CVE-2025-0243

Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6

5.1 MediumFix available

Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5. 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 134, Firefox ESR 128.6, Thunderbird 134, and Thunderbird 128.6.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

0.25%Up 0.2 points since Jan 8, 2025
90%50%10%1%

What each source reports

CVE List Score used 5.1

Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6

Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5. 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 134, Firefox ESR 128.6, Thunderbird 134, and Thunderbird 128.6.

Record
CVE-2025-0243
CVSS 3.1
5.1 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Updated
2026-11-02
EUVDEUVD-2025-1575 5.1

Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5. 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 134, Firefox ESR 128.6, Thunderbird 134, and Thunderbird 128.6.

Record
EUVD-2025-1575
CVSS 3.1
5.1 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-928f-3rxq-5jvp 5.1

Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird...

Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5. 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 < 134 and Firefox ESR < 128.6.

Record
GHSA-928f-3rxq-5jvp
CVSS 3.1
5.1 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness
CWE-787
Updated
2026-11-02
NVD 5.1

Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5. 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 134, Firefox ESR 128.6, Thunderbird 134, and Thunderbird 128.6.

Record
CVE-2025-0243
CVSS 3.1
5.1 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness
CWE-787
Updated
2026-11-02
OSV 5.1

Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5. 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 < 134, Firefox ESR < 128.6, Thunderbird < 134, and Thunderbird < 128.6.

Record
CVE-2025-0243
CVSS 3.1
5.1 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Updated
2026-11-02
OSVDEBIAN-CVE-2025-0243 5.1

Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5. 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 134, Firefox ESR 128.6, Thunderbird 134, and Thunderbird 128.6.

Record
DEBIAN-CVE-2025-0243
CVSS 3.1
5.1 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Updated
2026-11-02
Show 39 moreShow less
OSVOESA-2025-1049 6.3

firefox security update

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

Security Fix(es):

Assuming a controlled failed memory allocation, an attacker could have caused a use-after-free, leading to a potentially exploitable crash. This vulnerability affects Firefox &lt; 134, Firefox ESR &lt; 128.6, and Firefox ESR &lt; 115.19.(CVE-2025-0238)

When using Alt-Svc, ALPN did not properly validate certificates when the original server is redirecting to an insecure site. This vulnerability affects Firefox &lt; 134 and Firefox ESR &lt; 128.6.(CVE-2025-0239)

Parsing a JavaScript module as JSON could, under some circumstances, cause cross-compartment access, which may result in a use-after-free. This vulnerability affects Firefox &lt; 134 and Firefox ESR &lt; 128.6.(CVE-2025-0240)

Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5. 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 &lt; 134 and Firefox ESR &lt; 128.6.(CVE-2025-0243)

Record
OESA-2025-1049
CVSS 3.1
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Updated
2026-11-02
OSVOESA-2025-1050 6.3

firefox security update

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

Security Fix(es):

Assuming a controlled failed memory allocation, an attacker could have caused a use-after-free, leading to a potentially exploitable crash. This vulnerability affects Firefox &lt; 134, Firefox ESR &lt; 128.6, and Firefox ESR &lt; 115.19.(CVE-2025-0238)

When using Alt-Svc, ALPN did not properly validate certificates when the original server is redirecting to an insecure site. This vulnerability affects Firefox &lt; 134 and Firefox ESR &lt; 128.6.(CVE-2025-0239)

Parsing a JavaScript module as JSON could, under some circumstances, cause cross-compartment access, which may result in a use-after-free. This vulnerability affects Firefox &lt; 134 and Firefox ESR &lt; 128.6.(CVE-2025-0240)

Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5. 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 &lt; 134 and Firefox ESR &lt; 128.6.(CVE-2025-0243)

Record
OESA-2025-1050
CVSS 3.1
6.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Updated
2026-11-02
OSVOESA-2025-1835 9.8

thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

A permission leak could have occurred from a trusted site to an untrusted site via embed or object elements. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Firefox ESR < 115.17, Thunderbird < 128.4, and Thunderbird < 132.(CVE-2024-10458)

An attacker could have caused a use-after-free when accessibility was enabled, leading to a potentially exploitable crash. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Firefox ESR < 115.17, Thunderbird < 128.4, and Thunderbird < 132.(CVE-2024-10459)

The origin of an external protocol handler prompt could have been obscured using a data: URL within an iframe. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird < 132.(CVE-2024-10460)

In multipart/x-mixed-replace responses, Content-Disposition: attachment in the response header was not respected and did not force a download, which could allow XSS attacks. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird < 132.(CVE-2024-10461)

Truncation of a long URL could have allowed origin spoofing in a permission prompt. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird < 132.(CVE-2024-10462)

Video frames could have been leaked between origins in some situations. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Firefox ESR < 115.17, Thunderbird < 128.4, and Thunderbird < 132.(CVE-2024-10463)

Repeated writes to history interface attributes could have been used to cause a Denial of Service condition in the browser. This was addressed by introducing rate-limiting to this API. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird < 132.(CVE-2024-10464)

A clipboard "paste" button could persist across tabs which allowed a spoofing attack. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird < 132.(CVE-2024-10465)

By sending a specially crafted push message, a remote server could have hung the parent process, causing the browser to become unresponsive. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird < 132.(CVE-2024-10466)

Memory safety bugs present in Firefox 131, Firefox ESR 128.3, and Thunderbird 128.3. 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 < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird < 132.(CVE-2024-10467)

Using remote content in OpenPGP encrypted messages can lead to the disclosure of plaintext. This vulnerability affects Thunderbird < 128.4.3 and Thunderbird < 132.0.1.(CVE-2024-11159)

Certain WebGL operations on Apple silicon M series devices could have lead to an out-of-bounds write and memory corruption due to a flaw in Apple's GPU driver.
This bug only affected the application on Apple M series hardware. Other platforms were unaffected. This vulnerability affects Firefox < 133, Firefox ESR < 128.5, Firefox ESR < 115.18, Thunderbird < 133, Thunderbird < 128.5, and Thunderbird < 115.18.(CVE-2024-11691)

An attacker could cause a select dropdown to be shown over another tab; this could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 133, Firefox ESR < 128.5, Thunderbird < 133, and Thunderbird < 128.5.(CVE-2024-11692)

The executable file warning was not presented when downloading .library-ms files.
Note: This issue only affected Windows operating systems. Other operating systems are unaffected. This vulnerability affects…

Record
OESA-2025-1835
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
OSVRHSA-2025:0080 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2025:0080
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-2025:0132 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2025:0132
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-2025:0133 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2025:0133
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-2025:0134 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2025:0134
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-2025:0135 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2025:0135
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-2025:0136 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2025:0136
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-2025:0137 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2025:0137
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-2025:0138 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2025:0138
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-2025:0144 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2025:0144
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-2025:0147 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2025:0147
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-2025:0162 8.8

Red Hat Security Advisory: firefox security update

Record
RHSA-2025:0162
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-2025:0165 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2025:0165
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-2025:0166 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2025:0166
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-2025:0167 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2025:0167
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-2025:0275 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2025:0275
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-2025:0281 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2025:0281
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-2025:0284 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2025:0284
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-2025:0286 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2025:0286
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-2025:0287 8.8

Red Hat Security Advisory: thunderbird security update

Record
RHSA-2025:0287
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-2025-0243 5.1

Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5. 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 134, Firefox ESR 128.6, Thunderbird 134, and Thunderbird 128.6.

Record
UBUNTU-CVE-2025-0243
CVSS 3.1
5.1 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Updated
2026-11-02
OSVALSA-2025:0080 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: Use-after-free when breaking lines in text (CVE-2025-0238)
  • firefox: Memory corruption when using JavaScript Text Segmentation (CVE-2025-0241)
  • firefox: Alt-Svc ALPN validation failure when redirected (CVE-2025-0239)
  • firefox: thunderbird: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6 (CVE-2025-0243)
  • firefox: thunderbird: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6 (CVE-2025-0242)
  • firefox: WebChannel APIs susceptible to confused deputy attack (CVE-2025-0237)
  • firefox: Compartment mismatch when parsing JavaScript JSON module (CVE-2025-0240)

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-2025:0080
Updated
2026-11-02
OSVALSA-2025:0144 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: Use-after-free when breaking lines in text (CVE-2025-0238)
  • firefox: Memory corruption when using JavaScript Text Segmentation (CVE-2025-0241)
  • firefox: Alt-Svc ALPN validation failure when redirected (CVE-2025-0239)
  • firefox: thunderbird: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6 (CVE-2025-0243)
  • firefox: thunderbird: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6 (CVE-2025-0242)
  • firefox: WebChannel APIs susceptible to confused deputy attack (CVE-2025-0237)
  • firefox: Compartment mismatch when parsing JavaScript JSON module (CVE-2025-0240)

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-2025:0144
Updated
2026-11-02
OSVALSA-2025:0147 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 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6 (CVE-2025-0243)
  • firefox: thunderbird: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6 (CVE-2025-0242)

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-2025:0147
Updated
2026-11-02
OSVALSA-2025:0281 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 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6 (CVE-2025-0243)
  • firefox: thunderbird: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6 (CVE-2025-0242)

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-2025:0281
Updated
2026-11-02
OSVMGASA-2025-0009 No score

Updated firefox packages fix security vulnerabilities

WebChannel APIs susceptible to confused deputy attack. (CVE-2025-0237) Use-after-free when breaking lines in text. (CVE-2025-0238) Alt-Svc ALPN validation failure when redirected. (CVE-2025-0239) Compartment mismatch when parsing JavaScript JSON module. (CVE-2025-0240) Memory corruption when using JavaScript Text Segmentation. (CVE-2025-0241) Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6. (CVE-2025-0242) Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6. (CVE-2025-0243)

Record
MGASA-2025-0009
Updated
2026-11-02
OSVMGASA-2025-0010 No score

Updated thunderbird packages fix security vulnerabilities

WebChannel APIs susceptible to confused deputy attack. (CVE-2025-0237) Use-after-free when breaking lines in text. (CVE-2025-0238) Alt-Svc ALPN validation failure when redirected. (CVE-2025-0239) Compartment mismatch when parsing JavaScript JSON module. (CVE-2025-0240) Memory corruption when using JavaScript Text Segmentation. (CVE-2025-0241) Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6. (CVE-2025-0242) Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6. (CVE-2025-0243)

Record
MGASA-2025-0010
Updated
2026-11-02
OSVopenSUSE-SU-2025:14619-1 No score

firefox-esr-128.6.0-1.1 on GA media

These are all security issues fixed in the firefox-esr-128.6.0-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2025:14619-1
Updated
2026-11-02
OSVopenSUSE-SU-2025:14630-1 No score

MozillaFirefox-134.0-1.1 on GA media

These are all security issues fixed in the MozillaFirefox-134.0-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2025:14630-1
Updated
2026-11-02
OSVopenSUSE-SU-2025:14648-1 No score

MozillaThunderbird-128.6.0-1.1 on GA media

These are all security issues fixed in the MozillaThunderbird-128.6.0-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2025:14648-1
Updated
2026-11-02
OSVopenSUSE-SU-2025:14764-1 No score

libmozjs-128-0-128.7.0-1.1 on GA media

These are all security issues fixed in the libmozjs-128-0-128.7.0-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2025:14764-1
Updated
2026-11-02
OSVRLSA-2025:0144 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: Use-after-free when breaking lines in text (CVE-2025-0238)

  • firefox: Memory corruption when using JavaScript Text Segmentation (CVE-2025-0241)

  • firefox: Alt-Svc ALPN validation failure when redirected (CVE-2025-0239)

  • firefox: thunderbird: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6 (CVE-2025-0243)

  • firefox: thunderbird: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6 (CVE-2025-0242)

  • firefox: WebChannel APIs susceptible to confused deputy attack (CVE-2025-0237)

  • firefox: Compartment mismatch when parsing JavaScript JSON module (CVE-2025-0240)

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-2025:0144
Updated
2026-11-02
OSVRLSA-2025:0281 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 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6 (CVE-2025-0243)

  • firefox: thunderbird: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6 (CVE-2025-0242)

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-2025:0281
Updated
2026-11-02
OSVSUSE-SU-2025:0056-1 No score

Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues:

  • Firefox Extended Support Release 128.6.0 ESR

    • Fixed: Various security fixes.

    MFSA 2025-02 (bsc#1234991)

    • CVE-2025-0237 (bmo#1915257) WebChannel APIs susceptible to confused deputy attack
    • CVE-2025-0238 (bmo#1915535) Use-after-free when breaking lines
    • CVE-2025-0239 (bmo#1929156) Alt-Svc ALPN validation failure when redirected
    • CVE-2025-0240 (bmo#1929623) Compartment mismatch when parsing JavaScript JSON module
    • CVE-2025-0241 (bmo#1933023) Memory corruption when using JavaScript Text Segmentation
    • CVE-2025-0242 (bmo#1874523, bmo#1926454, bmo#1931873, bmo#1932169) Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6
    • CVE-2025-0243 (bmo#1827142, bmo#1932783) Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6

  • Firefox Extended Support Release 128.5.2 ESR

    • Fixed: Fixed a crash experienced by Windows users with Qihoo 360 Total Security Antivirus software installed (bmo#1934258)
Record
SUSE-SU-2025:0056-1
Updated
2026-11-02
OSVSUSE-SU-2025:0059-1 No score

Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues:

  • Firefox Extended Support Release 128.6.0 ESR

    • Fixed: Various security fixes.

    MFSA 2025-02 (bsc#1234991)

    • CVE-2025-0237 (bmo#1915257) WebChannel APIs susceptible to confused deputy attack
    • CVE-2025-0238 (bmo#1915535) Use-after-free when breaking lines
    • CVE-2025-0239 (bmo#1929156) Alt-Svc ALPN validation failure when redirected
    • CVE-2025-0240 (bmo#1929623) Compartment mismatch when parsing JavaScript JSON module
    • CVE-2025-0241 (bmo#1933023) Memory corruption when using JavaScript Text Segmentation
    • CVE-2025-0242 (bmo#1874523, bmo#1926454, bmo#1931873, bmo#1932169) Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6
    • CVE-2025-0243 (bmo#1827142, bmo#1932783) Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6

  • Firefox Extended Support Release 128.5.2 ESR

    • Fixed: Fixed a crash experienced by Windows users with Qihoo 360 Total Security Antivirus software installed (bmo#1934258)
Record
SUSE-SU-2025:0059-1
Updated
2026-11-02
OSVSUSE-SU-2025:0080-1 No score

Security update for MozillaThunderbird

This update for MozillaThunderbird fixes the following issues:

Update to Mozilla Thunderbird ESR 128.6 (MFSA 2025-05, bsc#1234991)

Security fixes:

  • CVE-2025-0237 (bmo#1915257) WebChannel APIs susceptible to confused deputy attack
  • CVE-2025-0238 (bmo#1915535) Use-after-free when breaking lines in text
  • CVE-2025-0239 (bmo#1929156) Alt-Svc ALPN validation failure when redirected
  • CVE-2025-0240 (bmo#1929623) Compartment mismatch when parsing JavaScript JSON module
  • CVE-2025-0241 (bmo#1933023) Memory corruption when using JavaScript Text Segmentation
  • CVE-2025-0242 (bmo#1874523, bmo#1926454, bmo#1931873, bmo#1932169) Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6
  • CVE-2025-0243 (bmo#1827142, bmo#1932783) Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6

Other fixes:

  • fixed: New mail notification was not hidden after reading the new message (bmo#1920077)
  • fixed: New mail notification could show for the wrong folder, causing repeated alerts (bmo#1926462)
  • fixed: macOS shortcut CMD+1 did not restore the main window when it was minimized (bmo#1857953)
  • fixed: Clicking the context menu 'Reply' button resulted in 'Reply-All' (bmo#1935883)
  • fixed: Switching from 'All', 'Unread', and 'Threads with unread' did not work (bmo#1921618)
  • fixed: Downloading message headers from a newsgroup could cause a hang (bmo#1931661)
  • fixed: Message list performance slow when many updates happened at once (bmo#1933104)
  • fixed: 'mailto:' links did not apply the compose format of the current identity (bmo#550414)
  • fixed: Authentication failure of AUTH PLAIN or AUTH LOGIN did not fall back to USERPASS (bmo#1928026)
Record
SUSE-SU-2025:0080-1
Updated
2026-11-02
OSVUSN-7191-1 No score

firefox vulnerabilities

Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across domains, or execute arbitrary code. (CVE-2025-0237, CVE-2025-0239, CVE-2025-0240, CVE-2025-0242, CVE-2025-0243, CVE-2025-0247)

Irvan Kurniawan discovered that Firefox incorrectly handled memory when breaking lines in text, leading to a use-after-free vulnerability. An attacker could possibly use this issue to cause a denial of service or possibly execute arbitrary code. (CVE-2025-0238)

Nils Bars discovered that Firefox incorrectly handled memory when using JavaScript Text Segmentation. An attacker could possibly use this issue to cause a denial of service. (CVE-2025-0241)

Record
USN-7191-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
firefox
AlmaLinux:9
 before 128.6.0-1.el9_5
128.6.0-1.el9_5
firefox-x11
AlmaLinux:9
 before 128.6.0-1.el9_5
128.6.0-1.el9_5
firefox
AlmaLinux:8
 before 128.6.0-1.el8_10
128.6.0-1.el8_10
thunderbird
AlmaLinux:9
 before 128.6.0-3.el9_5.alma.1
128.6.0-3.el9_5.alma.1
thunderbird
AlmaLinux:8
 before 128.6.0-3.el8_10.alma.1
128.6.0-3.el8_10.alma.1
firefox-esr
Debian:12
 before 128.6.0esr-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
128.6.0esr-1~deb12u1
firefox-esr
Debian:13
 before 128.6.0esr-1
128.6.0esr-1
firefox-esr
Debian:14
 before 128.6.0esr-1
128.6.0esr-1
thunderbird
Debian:12
 before 1:128.6.0esr-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
Show 45 moreShow less
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
1:128.6.0esr-1~deb12u1
thunderbird
Debian:13
 before 1:128.6.0esr-1
1:128.6.0esr-1
Show 129 moreShow less
Affected packages
PackageAffectedFixed
thunderbird
Debian:14
 before 1:128.6.0esr-1
1:128.6.0esr-1
firefox-esr
Debian:11
 before 128.6.0esr-1~deb11u3, plus listed versions
102.1.0esr-1102.1.0esr-2102.10.0esr-1102.10.0esr-1~deb10u1102.10.0esr-1~deb11u1
Show 45 moreShow less
102.11.0esr-1102.11.0esr-1~deb10u1102.11.0esr-1~deb11u1102.12.0esr-1102.12.0esr-1~deb10u1102.12.0esr-1~deb11u1102.12.0esr-1~deb12u1102.13.0esr-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~deb12u1102.2.0esr-1102.3.0esr-1102.3.0esr-1~deb10u1102.3.0esr-1~deb10u2102.3.0esr-1~deb11u1102.4.0esr-1102.4.0esr-1~deb10u1102.4.0esr-1~deb11u1102.5.0esr-1102.5.0esr-1~deb10u1102.5.0esr-1~deb11u1102.6.0esr-1102.6.0esr-1~deb10u1102.6.0esr-1~deb11u1102.7.0esr-1102.7.0esr-1~deb10u1102.7.0esr-1~deb11u1102.8.0esr-1102.8.0esr-1~deb10u1102.8.0esr-1~deb11u1102.9.0esr-1102.9.0esr-1~deb10u1102.9.0esr-1~deb11u1102.9.0esr-2115.0.2esr-1
128.6.0esr-1~deb11u3
thunderbird
Debian:11
 before 1:128.6.0esr-1~deb11u1, plus listed versions
1:102.0.1-11:102.0.2-11:102.0~b4-11:102.0~b7-11:102.1.0-1
Show 45 moreShow less
1:102.1.1-11:102.1.2-11:102.10.0-11:102.10.0-1~deb10u11:102.10.0-1~deb11u11:102.11.0-11:102.11.0-1~deb10u11:102.11.0-1~deb11u11:102.12.0-11:102.12.0-1~deb10u11:102.12.0-1~deb11u11:102.12.0-1~deb12u11:102.13.0-11:102.13.0-1~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~deb12u11:102.2.0-11:102.2.1-11:102.2.2-11:102.3.0-11:102.3.0-1~deb10u11:102.3.0-1~deb11u11:102.3.1-11:102.3.2-11:102.3.3-11:102.4.0-11:102.4.0-1~deb10u11:102.4.0-1~deb11u11:102.4.1-11:102.5.0-11:102.5.0-1~deb10u11:102.5.0-1~deb11u1
1:128.6.0esr-1~deb11u1
firefox
Mageia:9
 before 128.6.0-1.mga9
128.6.0-1.mga9
firefox-l10n
Mageia:9
 before 128.6.0-1.mga9
128.6.0-1.mga9
thunderbird
Mageia:9
 before 128.6.0-1.mga9
128.6.0-1.mga9
thunderbird-l10n
Mageia:9
 before 128.6.0-1.mga9
128.6.0-1.mga9
firefox
openEuler:24.03-LTS-SP1
 before 128.6.0-1.oe2403sp1
128.6.0-1.oe2403sp1
firefox
openEuler:24.03-LTS
 before 128.6.0-1.oe2403
128.6.0-1.oe2403
thunderbird
openEuler:24.03-LTS-SP2
 before 128.11.1-1.oe2403sp2
128.11.1-1.oe2403sp2
firefox
Red Hat:enterprise_linux:9::appstream
 before 0:128.6.0-1.el9_5
0:128.6.0-1.el9_5
firefox-debuginfo
Red Hat:enterprise_linux:9::appstream
 before 0:128.6.0-1.el9_5
0:128.6.0-1.el9_5
firefox-debugsource
Red Hat:enterprise_linux:9::appstream
 before 0:128.6.0-1.el9_5
0:128.6.0-1.el9_5
firefox-x11
Red Hat:enterprise_linux:9::appstream
 before 0:128.6.0-1.el9_5
0:128.6.0-1.el9_5
firefox
Red Hat:rhel_els:7
 before 0:128.6.0-1.el7_9
0:128.6.0-1.el7_9
firefox-debuginfo
Red Hat:rhel_els:7
 before 0:128.6.0-1.el7_9
0:128.6.0-1.el7_9
firefox
Red Hat:rhel_aus:8.2::appstream
 before 0:128.6.0-1.el8_2
0:128.6.0-1.el8_2
firefox-debuginfo
Red Hat:rhel_aus:8.2::appstream
 before 0:128.6.0-1.el8_2
0:128.6.0-1.el8_2
firefox-debugsource
Red Hat:rhel_aus:8.2::appstream
 before 0:128.6.0-1.el8_2
0:128.6.0-1.el8_2
firefox
Red Hat:rhel_aus:8.4::appstream
 before 0:128.6.0-1.el8_4
0:128.6.0-1.el8_4
firefox-debuginfo
Red Hat:rhel_aus:8.4::appstream
 before 0:128.6.0-1.el8_4
0:128.6.0-1.el8_4
firefox-debugsource
Red Hat:rhel_aus:8.4::appstream
 before 0:128.6.0-1.el8_4
0:128.6.0-1.el8_4
firefox
Red Hat:rhel_e4s:8.4::appstream
 before 0:128.6.0-1.el8_4
0:128.6.0-1.el8_4
firefox-debuginfo
Red Hat:rhel_e4s:8.4::appstream
 before 0:128.6.0-1.el8_4
0:128.6.0-1.el8_4
firefox-debugsource
Red Hat:rhel_e4s:8.4::appstream
 before 0:128.6.0-1.el8_4
0:128.6.0-1.el8_4
firefox
Red Hat:rhel_tus:8.4::appstream
 before 0:128.6.0-1.el8_4
0:128.6.0-1.el8_4
firefox-debuginfo
Red Hat:rhel_tus:8.4::appstream
 before 0:128.6.0-1.el8_4
0:128.6.0-1.el8_4
firefox-debugsource
Red Hat:rhel_tus:8.4::appstream
 before 0:128.6.0-1.el8_4
0:128.6.0-1.el8_4
firefox
Red Hat:rhel_eus:9.4::appstream
 before 0:128.6.0-1.el9_4
0:128.6.0-1.el9_4
firefox-debuginfo
Red Hat:rhel_eus:9.4::appstream
 before 0:128.6.0-1.el9_4
0:128.6.0-1.el9_4
firefox-debugsource
Red Hat:rhel_eus:9.4::appstream
 before 0:128.6.0-1.el9_4
0:128.6.0-1.el9_4
firefox-x11
Red Hat:rhel_eus:9.4::appstream
 before 0:128.6.0-1.el9_4
0:128.6.0-1.el9_4
firefox
Red Hat:rhel_aus:8.6::appstream
 before 0:128.6.0-1.el8_6
0:128.6.0-1.el8_6
firefox-debuginfo
Red Hat:rhel_aus:8.6::appstream
 before 0:128.6.0-1.el8_6
0:128.6.0-1.el8_6
firefox-debugsource
Red Hat:rhel_aus:8.6::appstream
 before 0:128.6.0-1.el8_6
0:128.6.0-1.el8_6
firefox
Red Hat:rhel_e4s:8.6::appstream
 before 0:128.6.0-1.el8_6
0:128.6.0-1.el8_6
firefox-debuginfo
Red Hat:rhel_e4s:8.6::appstream
 before 0:128.6.0-1.el8_6
0:128.6.0-1.el8_6
firefox-debugsource
Red Hat:rhel_e4s:8.6::appstream
 before 0:128.6.0-1.el8_6
0:128.6.0-1.el8_6
firefox
Red Hat:rhel_tus:8.6::appstream
 before 0:128.6.0-1.el8_6
0:128.6.0-1.el8_6
firefox-debuginfo
Red Hat:rhel_tus:8.6::appstream
 before 0:128.6.0-1.el8_6
0:128.6.0-1.el8_6
firefox-debugsource
Red Hat:rhel_tus:8.6::appstream
 before 0:128.6.0-1.el8_6
0:128.6.0-1.el8_6
firefox
Red Hat:rhel_eus:8.8::appstream
 before 0:128.6.0-1.el8_8
0:128.6.0-1.el8_8
firefox-debuginfo
Red Hat:rhel_eus:8.8::appstream
 before 0:128.6.0-1.el8_8
0:128.6.0-1.el8_8
firefox-debugsource
Red Hat:rhel_eus:8.8::appstream
 before 0:128.6.0-1.el8_8
0:128.6.0-1.el8_8
firefox
Red Hat:rhel_eus:9.2::appstream
 before 0:128.6.0-1.el9_2
0:128.6.0-1.el9_2
firefox-debuginfo
Red Hat:rhel_eus:9.2::appstream
 before 0:128.6.0-1.el9_2
0:128.6.0-1.el9_2
firefox-debugsource
Red Hat:rhel_eus:9.2::appstream
 before 0:128.6.0-1.el9_2
0:128.6.0-1.el9_2
firefox-x11
Red Hat:rhel_eus:9.2::appstream
 before 0:128.6.0-1.el9_2
0:128.6.0-1.el9_2
firefox
Red Hat:enterprise_linux:8::appstream
 before 0:128.6.0-1.el8_10
0:128.6.0-1.el8_10
firefox-debuginfo
Red Hat:enterprise_linux:8::appstream
 before 0:128.6.0-1.el8_10
0:128.6.0-1.el8_10
firefox-debugsource
Red Hat:enterprise_linux:8::appstream
 before 0:128.6.0-1.el8_10
0:128.6.0-1.el8_10
thunderbird
Red Hat:enterprise_linux:9::appstream
 before 0:128.6.0-3.el9_5
0:128.6.0-3.el9_5
thunderbird-debuginfo
Red Hat:enterprise_linux:9::appstream
 before 0:128.6.0-3.el9_5
0:128.6.0-3.el9_5
thunderbird-debugsource
Red Hat:enterprise_linux:9::appstream
 before 0:128.6.0-3.el9_5
0:128.6.0-3.el9_5
firefox
Red Hat:rhel_e4s:9.0::appstream
 before 0:128.6.0-1.el9_0
0:128.6.0-1.el9_0
firefox-debuginfo
Red Hat:rhel_e4s:9.0::appstream
 before 0:128.6.0-1.el9_0
0:128.6.0-1.el9_0
firefox-debugsource
Red Hat:rhel_e4s:9.0::appstream
 before 0:128.6.0-1.el9_0
0:128.6.0-1.el9_0
thunderbird
Red Hat:rhel_e4s:9.0::appstream
 before 0:128.6.0-3.el9_0
0:128.6.0-3.el9_0
thunderbird-debuginfo
Red Hat:rhel_e4s:9.0::appstream
 before 0:128.6.0-3.el9_0
0:128.6.0-3.el9_0
thunderbird-debugsource
Red Hat:rhel_e4s:9.0::appstream
 before 0:128.6.0-3.el9_0
0:128.6.0-3.el9_0
thunderbird
Red Hat:rhel_eus:9.4::appstream
 before 0:128.6.0-3.el9_4
0:128.6.0-3.el9_4
thunderbird-debuginfo
Red Hat:rhel_eus:9.4::appstream
 before 0:128.6.0-3.el9_4
0:128.6.0-3.el9_4
thunderbird-debugsource
Red Hat:rhel_eus:9.4::appstream
 before 0:128.6.0-3.el9_4
0:128.6.0-3.el9_4
thunderbird
Red Hat:rhel_eus:9.2::appstream
 before 0:128.6.0-3.el9_2
0:128.6.0-3.el9_2
thunderbird-debuginfo
Red Hat:rhel_eus:9.2::appstream
 before 0:128.6.0-3.el9_2
0:128.6.0-3.el9_2
thunderbird-debugsource
Red Hat:rhel_eus:9.2::appstream
 before 0:128.6.0-3.el9_2
0:128.6.0-3.el9_2
thunderbird
Red Hat:rhel_aus:8.6::appstream
 before 0:128.6.0-3.el8_6
0:128.6.0-3.el8_6
thunderbird-debuginfo
Red Hat:rhel_aus:8.6::appstream
 before 0:128.6.0-3.el8_6
0:128.6.0-3.el8_6
thunderbird-debugsource
Red Hat:rhel_aus:8.6::appstream
 before 0:128.6.0-3.el8_6
0:128.6.0-3.el8_6
thunderbird
Red Hat:rhel_e4s:8.6::appstream
 before 0:128.6.0-3.el8_6
0:128.6.0-3.el8_6
thunderbird-debuginfo
Red Hat:rhel_e4s:8.6::appstream
 before 0:128.6.0-3.el8_6
0:128.6.0-3.el8_6
thunderbird-debugsource
Red Hat:rhel_e4s:8.6::appstream
 before 0:128.6.0-3.el8_6
0:128.6.0-3.el8_6
thunderbird
Red Hat:rhel_tus:8.6::appstream
 before 0:128.6.0-3.el8_6
0:128.6.0-3.el8_6
thunderbird-debuginfo
Red Hat:rhel_tus:8.6::appstream
 before 0:128.6.0-3.el8_6
0:128.6.0-3.el8_6
thunderbird-debugsource
Red Hat:rhel_tus:8.6::appstream
 before 0:128.6.0-3.el8_6
0:128.6.0-3.el8_6
thunderbird
Red Hat:enterprise_linux:8::appstream
 before 0:128.6.0-3.el8_10
0:128.6.0-3.el8_10
thunderbird-debuginfo
Red Hat:enterprise_linux:8::appstream
 before 0:128.6.0-3.el8_10
0:128.6.0-3.el8_10
thunderbird-debugsource
Red Hat:enterprise_linux:8::appstream
 before 0:128.6.0-3.el8_10
0:128.6.0-3.el8_10
thunderbird
Red Hat:rhel_eus:8.8::appstream
 before 0:128.6.0-3.el8_8
0:128.6.0-3.el8_8
thunderbird-debuginfo
Red Hat:rhel_eus:8.8::appstream
 before 0:128.6.0-3.el8_8
0:128.6.0-3.el8_8
thunderbird-debugsource
Red Hat:rhel_eus:8.8::appstream
 before 0:128.6.0-3.el8_8
0:128.6.0-3.el8_8
thunderbird
Red Hat:rhel_aus:8.2::appstream
 before 0:128.6.0-3.el8_2
0:128.6.0-3.el8_2
thunderbird-debuginfo
Red Hat:rhel_aus:8.2::appstream
 before 0:128.6.0-3.el8_2
0:128.6.0-3.el8_2
thunderbird-debugsource
Red Hat:rhel_aus:8.2::appstream
 before 0:128.6.0-3.el8_2
0:128.6.0-3.el8_2
thunderbird
Red Hat:rhel_aus:8.4::appstream
 before 0:128.6.0-3.el8_4
0:128.6.0-3.el8_4
thunderbird-debuginfo
Red Hat:rhel_aus:8.4::appstream
 before 0:128.6.0-3.el8_4
0:128.6.0-3.el8_4
thunderbird-debugsource
Red Hat:rhel_aus:8.4::appstream
 before 0:128.6.0-3.el8_4
0:128.6.0-3.el8_4
thunderbird
Red Hat:rhel_e4s:8.4::appstream
 before 0:128.6.0-3.el8_4
0:128.6.0-3.el8_4
thunderbird-debuginfo
Red Hat:rhel_e4s:8.4::appstream
 before 0:128.6.0-3.el8_4
0:128.6.0-3.el8_4
thunderbird-debugsource
Red Hat:rhel_e4s:8.4::appstream
 before 0:128.6.0-3.el8_4
0:128.6.0-3.el8_4
thunderbird
Red Hat:rhel_tus:8.4::appstream
 before 0:128.6.0-3.el8_4
0:128.6.0-3.el8_4
thunderbird-debuginfo
Red Hat:rhel_tus:8.4::appstream
 before 0:128.6.0-3.el8_4
0:128.6.0-3.el8_4
thunderbird-debugsource
Red Hat:rhel_tus:8.4::appstream
 before 0:128.6.0-3.el8_4
0:128.6.0-3.el8_4
firefox
Rocky Linux:8
 before 0:128.6.0-1.el8_10
0:128.6.0-1.el8_10
thunderbird
Rocky Linux:8
 before 0:128.6.0-3.el8_10
0:128.6.0-3.el8_10
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP5-LTSS
 before 128.6.0-112.243.1
128.6.0-112.243.1
MozillaFirefox
SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5
 before 128.6.0-112.243.1
128.6.0-112.243.1
MozillaFirefox
SUSE:Linux Enterprise Module for Desktop Applications 15 SP6
 before 128.6.0-150200.152.167.1
128.6.0-150200.152.167.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS
 before 128.6.0-150200.152.167.1
128.6.0-150200.152.167.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS
 before 128.6.0-150200.152.167.1
128.6.0-150200.152.167.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS
 before 128.6.0-150200.152.167.1
128.6.0-150200.152.167.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS
 before 128.6.0-150200.152.167.1
128.6.0-150200.152.167.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS
 before 128.6.0-150200.152.167.1
128.6.0-150200.152.167.1
MozillaFirefox
SUSE:Linux Enterprise Server 15 SP3-LTSS
 before 128.6.0-150200.152.167.1
128.6.0-150200.152.167.1
MozillaFirefox
SUSE:Linux Enterprise Server 15 SP4-LTSS
 before 128.6.0-150200.152.167.1
128.6.0-150200.152.167.1
MozillaFirefox
SUSE:Linux Enterprise Server 15 SP5-LTSS
 before 128.6.0-150200.152.167.1
128.6.0-150200.152.167.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 15 SP3
 before 128.6.0-150200.152.167.1
128.6.0-150200.152.167.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 15 SP4
 before 128.6.0-150200.152.167.1
128.6.0-150200.152.167.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 15 SP5
 before 128.6.0-150200.152.167.1
128.6.0-150200.152.167.1
MozillaFirefox
SUSE:Enterprise Storage 7.1
 before 128.6.0-150200.152.167.1
128.6.0-150200.152.167.1
MozillaFirefox
openSUSE:Leap 15.6
 before 128.6.0-150200.152.167.1
128.6.0-150200.152.167.1
MozillaThunderbird
SUSE:Linux Enterprise Module for Package Hub 15 SP6
 before 128.6.0-150200.8.197.1
128.6.0-150200.8.197.1
MozillaThunderbird
SUSE:Linux Enterprise Workstation Extension 15 SP6
 before 128.6.0-150200.8.197.1
128.6.0-150200.8.197.1
MozillaThunderbird
openSUSE:Leap 15.6
 before 128.6.0-150200.8.197.1
128.6.0-150200.8.197.1
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
firefox
Ubuntu:20.04:LTS
 before 134.0+build1-0ubuntu0.20.04.1, plus listed versions
69.0.3+build1-0ubuntu170.0+build2-0ubuntu170.0+build2-0ubuntu270.0.1+build1-0ubuntu271.0+build2-0ubuntu2
Show 45 moreShow less
71.0+build5-0ubuntu172.0.1+build1-0ubuntu172.0.2+build1-0ubuntu173.0+build1-0ubuntu173.0+build2-0ubuntu173.0+build3-0ubuntu173.0.1+build1-0ubuntu174.0+build1-0ubuntu174.0+build2-0ubuntu174.0+build2-0ubuntu274.0+build3-0ubuntu175.0+build3-0ubuntu176.0+build2-0ubuntu0.20.04.176.0.1+build1-0ubuntu0.20.04.177.0.1+build1-0ubuntu0.20.04.178.0.1+build1-0ubuntu0.20.04.178.0.2+build2-0ubuntu0.20.04.179.0+build1-0ubuntu0.20.04.180.0+build2-0ubuntu0.20.04.180.0.1+build1-0ubuntu0.20.04.181.0+build2-0ubuntu0.20.04.181.0.2+build1-0ubuntu0.20.04.182.0+build2-0ubuntu0.20.04.182.0.2+build1-0ubuntu0.20.04.182.0.3+build1-0ubuntu0.20.04.183.0+build2-0ubuntu0.20.04.184.0+build3-0ubuntu0.20.04.184.0.1+build1-0ubuntu0.20.04.184.0.2+build1-0ubuntu0.20.04.185.0+build1-0ubuntu0.20.04.185.0.1+build1-0ubuntu0.20.04.186.0+build3-0ubuntu0.20.04.186.0.1+build1-0ubuntu0.20.04.187.0+build3-0ubuntu0.20.04.288.0+build2-0ubuntu0.20.04.188.0.1+build1-0ubuntu0.20.04.289.0+build2-0ubuntu0.20.04.289.0.1+build1-0ubuntu0.20.04.189.0.2+build1-0ubuntu0.20.04.190.0+build1-0ubuntu0.20.04.190.0.2+build1-0ubuntu0.20.04.191.0+build2-0ubuntu0.20.04.191.0.1+build1-0ubuntu0.20.04.191.0.2+build1-0ubuntu0.20.04.192.0+build3-0ubuntu0.20.04.1
134.0+build1-0ubuntu0.20.04.1
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
 before 1:140.7.1+build1-0ubuntu0.22.04.1, 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 33 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+build1-0ubuntu0.22.04.1
1:140.7.1+build1-0ubuntu0.22.04.1
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
firefox-esr
openSUSE:Tumbleweed
 before 128.6.0-1.1
128.6.0-1.1
MozillaFirefox
openSUSE:Tumbleweed
 before 134.0-1.1
134.0-1.1
MozillaThunderbird
openSUSE:Tumbleweed
 before 128.6.0-1.1
128.6.0-1.1
mozjs128
openSUSE:Tumbleweed
 before 128.7.0-1.1
128.7.0-1.1

History

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

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

In short

CVE-2025-0243 is a medium vulnerability (CVSS 5.1) in Mozilla Firefox, published January 7, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.25%, the 16th percentile. Fixed in firefox 128.6.0-1.el9_5.

References

Show 194 moreShow less
This page doesn't list everything

Left out here: 518 versions, 17 references and the rest of 1 source description. The JSON record has them.

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