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firefox-esr vulnerabilities · Page 10

Vulnerabilities published for firefox-esr in the last 30 days: 124. Listed in the KEV catalogue: 0.

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Vulnerabilities: 1214

  1. CVE-2026-74946

    High · CVSS 8.8EPSS 0.49%Fix available

    Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component

    Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.

    • Update to 140.14.0esr-1~deb13u1
    Published Updated
  2. CVE-2026-74942

    High · CVSS 8.8EPSS 0.45%Fix available

    Privilege escalation in the Remote Settings Client component

    Privilege escalation in the Remote Settings Client component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.

    • Update to 140.14.0esr-1~deb13u1
    Published Updated
  3. CVE-2026-74934

    High · CVSS 7.5EPSS 0.21%Fix available

    Site isolation issue in the Graphics: CanvasWebGL component

    Site isolation issue in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.

    • Update to 140.14.0esr-1~deb13u1
    Published Updated
  4. CVE-2026-16361

    Critical · CVSS 9.8EPSS 0.57%Fix available

    Memory safety bugs fixed in Thunderbird ESR 140.13

    Memory safety bugs present in Thunderbird ESR 140.12. 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 ESR 115.38, Firefox ESR 140.13, and Thunderbird 140.13.

    • Update to 140.13.0esr-1~deb13u1
    Published Updated
  5. CVE-2026-16360

    Critical · CVSS 9.8EPSS 0.61%Fix available

    Memory safety bugs fixed in Thunderbird ESR 140.13 and Thunderbird 153

    Memory safety bugs present in Thunderbird ESR 140.12 and Thunderbird 152. 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 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.

    • Update to 140.13.0esr-1~deb13u1
    Published Updated
  6. CVE-2026-16412

    Critical · CVSS 9.8EPSS 0.61%Fix available

    Memory safety bugs fixed in Thunderbird ESR 140.13 and Thunderbird 153

    Memory safety bugs present in Thunderbird ESR 140.12 and Thunderbird 152. 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 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.

    • Update to 140.13.0esr-1~deb13u1
    Published Updated

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