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Security Vulnerabilities fixed in Thunderbird 140.12 — Mozilla

🗓️ 16 Jun 2026 00:00:00Reported by Mozilla FoundationType 
mozilla
 mozilla
🔗 www.mozilla.org👁 2 Views

Security vulnerabilities fixed in Thunderbird 140.12; memory safety bugs in Thunderbird and Firefox could allow code execution.

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mozillathunderbirdRange<140.12

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16 Jun 2026 00:00Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.18.8
SSVC
2