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firefox-esr vulnerabilities · Page 29

Vulnerabilities published for firefox-esr in the last 30 days: 206. Listed in the KEV catalogue: 0.

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Vulnerabilities: 1349

  1. CVE-2025-11710

    Critical · CVSS 9.8EPSS 0.42%Fix available

    Cross-process information leaked due to malicious IPC messages

    A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.

    • Update to 140.4.0esr-1
    Published Updated
  2. CVE-2025-11709

    Critical · CVSS 9.8EPSS 0.42%Fix available

    Out of bounds read/write in a privileged process triggered by WebGL textures

    A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.

    • Update to 140.4.0esr-1
    Published Updated
  3. CVE-2025-10537

    High · CVSS 8.8EPSS 0.34%Fix available

    Memory safety bugs fixed in Firefox ESR 140.3, Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143

    Memory safety bugs present in Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142. 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 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.

    • Update to 140.3.0esr-1
    Published Updated
  4. CVE-2025-10528

    High · CVSS 7.3EPSS 0.37%Fix available

    Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canvas2D component

    Sandbox escape due to undefined behavior, invalid pointer in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.

    • Update to 140.3.0esr-1
    Published Updated
  5. CVE-2025-9185

    High · CVSS 8.1EPSS 0.51%Fix available

    Memory safety bugs fixed in Firefox ESR 115.27, Firefox ESR 128.14, Thunderbird ESR 128.14, Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142

    Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. 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 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2.

    • Update to 128.14.0esr-1
    Published Updated
  6. CVE-2025-9179

    Critical · CVSS 9.8EPSS 0.61%Fix available

    Sandbox escape due to invalid pointer in the Audio/Video: GMP component

    An attacker was able to perform memory corruption in the GMP process which processes encrypted media. This process is also heavily sandboxed, but represents slightly different privileges from the content process. This vulnerability was fixed in Firefox 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2.

    • Update to 128.14.0esr-1
    Published Updated
  7. CVE-2025-8035

    High · CVSS 8.8EPSS 0.4%Fix available

    Memory safety bugs fixed in Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141

    Memory safety bugs present in Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140. 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 141, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.

    • Update to 128.13.0esr-1
    Published Updated
  8. CVE-2025-8034

    High · CVSS 8.8EPSS 0.46%Fix available

    Memory safety bugs fixed in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141

    Memory safety bugs present in Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140. 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 141, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.

    • Update to 128.13.0esr-1
    Published Updated
  9. CVE-2025-8033

    Medium · CVSS 6.5EPSS 0.43%Fix available

    Incorrect JavaScript state machine for generators

    The JavaScript engine did not handle closed generators correctly and it was possible to resume them leading to a nullptr deref. This vulnerability was fixed in Firefox 141, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.

    • Update to 128.13.0esr-1
    Published Updated
  10. CVE-2025-8031

    Critical · CVSS 9.8EPSS 0.51%Fix available

    Incorrect URL stripping in CSP reports

    The `username:password` part was not correctly stripped from URLs in CSP reports potentially leaking HTTP Basic Authentication credentials. This vulnerability was fixed in Firefox 141, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.

    • Update to 128.13.0esr-1
    Published Updated

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