Debian/thunderbird: critical 9.1
Triggering an error condition in certain MIME bodies would cause uninitialized memory to be used. This vulnerability was fixed in Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.
Action: Upgrade thunderbird to 1:153.2.0esr-1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1:153.2.0esr-1 | - |
Fixed versions
| 1:153.2.0esr-1 |
Sources
- osv: DEBIAN-CVE-2026-84639#Debian:14/thunderbird
- https://security-tracker.debian.org/tracker/CVE-2026-84639
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