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firefox-esr vulnerabilities · Page 15

Vulnerabilities published for firefox-esr in the last 30 days: 268. Listed in the KEV catalogue: 0.

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Vulnerabilities: 1358

  1. CVE-2026-92020

    High · CVSS 8.8EPSS 0.26%Fix available

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

    Privilege escalation due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    • Update to 140.16.0esr-1~deb13u1
    Published Updated
  2. CVE-2026-92019

    High · CVSS 8.1EPSS 0.31%Fix available

    Mitigation bypass in the Remote Settings Client component

    Mitigation bypass in the Remote Settings Client component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    • Update to 140.16.0esr-1~deb13u1
    Published Updated
  3. CVE-2026-92017

    High · CVSS 8.8EPSS 0.24%Fix available

    Privilege escalation in the DOM: Service Workers component

    Privilege escalation in the DOM: Service Workers component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    • Update to 140.16.0esr-1~deb13u1
    Published Updated
  4. CVE-2026-92013

    High · CVSS 8.8EPSS 0.26%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 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    • Update to 140.16.0esr-1~deb13u1
    Published Updated
  5. CVE-2026-92012

    High · CVSS 8.8EPSS 0.26%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 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    • Update to 140.16.0esr-1~deb13u1
    Published Updated
  6. CVE-2026-92011

    High · CVSS 8.8EPSS 0.26%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 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    • Update to 140.16.0esr-1~deb13u1
    Published Updated
  7. CVE-2026-92010

    High · CVSS 8.8EPSS 0.26%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 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    • Update to 140.16.0esr-1~deb13u1
    Published Updated
  8. CVE-2026-92009

    High · CVSS 8.8EPSS 0.26%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 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    • Update to 140.16.0esr-1~deb13u1
    Published Updated
  9. CVE-2026-92008

    High · CVSS 8.8EPSS 0.26%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 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    • Update to 140.16.0esr-1~deb13u1
    Published Updated
  10. CVE-2026-92007

    High · CVSS 8.8EPSS 0.26%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 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    • Update to 140.16.0esr-1~deb13u1
    Published Updated
  11. CVE-2026-92006

    High · CVSS 8.8EPSS 0.33%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 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    • Update to 140.16.0esr-1~deb13u1
    Published Updated
  12. CVE-2026-84143

    Critical · CVSS 9.8EPSS 0.38%Fix available

    Internally found bugs fixed in Thunderbird 155, Thunderbird ESR 153.2 and Thunderbird ESR 140.15

    Internally found bugs present in Thunderbird 154, Thunderbird ESR 153.1 and Thunderbird ESR 140.14. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.

    • Update to 140.15.0esr-1~deb13u1
    Published Updated
  13. CVE-2026-84145

    High · CVSS 7.5EPSS 0.37%Fix available

    Internally found bugs fixed in Thunderbird 155, Thunderbird ESR 153.2 and Thunderbird ESR 140.15

    Internally found bugs present in Thunderbird 154, Thunderbird ESR 153.1 and Thunderbird ESR 140.14. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.

    • Update to 140.15.0esr-1~deb13u1
    Published Updated

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