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Security Vulnerabilities fixed in Thunderbird 140.9 — Mozilla

🗓️ 24 Mar 2026 00:00:00Reported by Mozilla FoundationType 
mozilla
 mozilla
🔗 www.mozilla.org👁 8 Views

Thunderbird 140.9 fixes memory safety bugs that could crash or leak data from malformed mail server strings.

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Family
FreeBSD
Mozilla -- Multiple vulnerabilities
24 Mar 202600:00
freebsd
FreeBSD
Mozilla -- Multiple vulnerabilities
24 Mar 202600:00
freebsd
ATTACKERKB
CVE-2026-4685
24 Mar 202612:30
attackerkb
ATTACKERKB
CVE-2026-4690
24 Mar 202612:30
attackerkb
ATTACKERKB
CVE-2026-4688
24 Mar 202612:30
attackerkb
ATTACKERKB
CVE-2026-4686
24 Mar 202612:30
attackerkb
ATTACKERKB
CVE-2026-4689
24 Mar 202612:30
attackerkb
ATTACKERKB
CVE-2026-4684
24 Mar 202612:30
attackerkb
ATTACKERKB
CVE-2026-3889
24 Mar 202620:27
attackerkb
ATTACKERKB
CVE-2026-4687
24 Mar 202612:30
attackerkb
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24 Mar 2026 00:00Current
6.5Medium risk
Vulners AI Score6.5
CVSS 3.110
EPSS0.00064
SSVC
8