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Security Vulnerabilities fixed in Thunderbird 154 — Mozilla

🗓️ 18 Aug 2026 00:00:00Reported by Mozilla FoundationType 
mozilla
 mozilla
🔗 www.mozilla.org👁 2 Views

Thunderbird 154 fixes internal memory corruption bugs in ESR 140.13, ESR 153.0 and 153.

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18 Aug 2026 00:00Current
5.4Medium risk
Vulners AI Score5.4
CVSS 3.110
SSVC
2