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thunderbird vulnerabilities · Page 3

Vulnerabilities published for thunderbird in the last 30 days: 107. Listed in the KEV catalogue: 0.

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Vulnerabilities: 1152

  1. CVE-2026-109705

    Critical · CVSS 9.6EPSS 0.31%No fix published

    Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in the Networking component

    Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

    Published Updated

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