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Security Vulnerabilities fixed in Thunderbird 147 — Mozilla

🗓️ 13 Jan 2026 00:00:00Reported by Mozilla FoundationType 
mozilla
 mozilla
🔗 www.mozilla.org👁 5 Views

Security fixes for Thunderbird 147; memory safety bugs in Thunderbird and Firefox across ESR 140.6 and 146.

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13 Jan 2026 00:00Current
7.7High risk
Vulners AI Score7.7
CVSS 3.110
EPSS0.00034
SSVC
5