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firefox-esr vulnerabilities · Page 20

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-2026-8975

    High · CVSS 8.8EPSS 0.47%Fix available

    Memory safety bugs fixed in Thunderbird 140.11 and Thunderbird 151

    Memory safety bugs present in Thunderbird 140.10 and Thunderbird 150. 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 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

    • Update to 140.11.0esr-1
    Published Updated
  2. CVE-2026-8974

    High · CVSS 8.8EPSS 0.36%Fix available

    Memory safety bugs fixed in Thunderbird 140.11 and Thunderbird 151

    Memory safety bugs present in Thunderbird 140.10 and Thunderbird 150. 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 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

    • Update to 140.11.0esr-1
    Published Updated

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