Debian/thunderbird: critical 9.8
Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.
Action: Upgrade thunderbird to 1:140.7.0esr-1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1:140.7.0esr-1 | - |
Fixed versions
| 1:140.7.0esr-1 |
Sources
- osv: DEBIAN-CVE-2026-0879#Debian:14/thunderbird
- https://security-tracker.debian.org/tracker/CVE-2026-0879
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