Debian/thunderbird: critical 9.8
Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and w
Action: Upgrade thunderbird to 1:140.9.1esr-1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1:140.9.1esr-1 | - |
Fixed versions
| 1:140.9.1esr-1 |
Sources
- osv: DEBIAN-CVE-2026-5731#Debian:14/thunderbird
- https://security-tracker.debian.org/tracker/CVE-2026-5731
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