Debian/thunderbird: medium 5.4
Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 155, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.
Action: Upgrade thunderbird to 1:140.15.0esr-1~deb13u1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1:140.15.0esr-1~deb13u1 | - |
Fixed versions
| 1:140.15.0esr-1~deb13u1 |
Sources
- osv: DEBIAN-CVE-2026-84122#Debian:13/thunderbird
- https://security-tracker.debian.org/tracker/CVE-2026-84122
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