Debian/thunderbird: critical 9.8
Memory safety bugs present in 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 we presume that with en
Action: Upgrade thunderbird to 1:140.9.1esr-1~deb13u1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1:140.9.1esr-1~deb13u1 | - |
Fixed versions
| 1:140.9.1esr-1~deb13u1 |
Sources
- osv: DEBIAN-CVE-2026-5734#Debian:13/thunderbird
- https://security-tracker.debian.org/tracker/CVE-2026-5734
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