p PatchFirst

PatchFirst · Latest vulnerabilities

thunderbird vulnerabilities · Page 3

Vulnerabilities published for thunderbird in the last 30 days: 127. Listed in the KEV catalogue: 0.

Filter vulnerabilities
Clear filters

Vulnerabilities: 1193

  1. CVE-2026-109709

    High · CVSS 8.8EPSS 0.33%Fix available

    Information disclosure, privilege escalation in the Security: Process Sandboxing component

    Information disclosure, privilege escalation in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

    • Update to 1:153.5.0esr-1
    Published Updated
  2. CVE-2026-109705

    Critical · CVSS 9.6EPSS 0.31%Fix available

    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.

    • Update to 1:153.5.0esr-1
    Published Updated

Check your server

Check your installed stack and versions against the current vulnerability feeds.

Check your server →