Debian/thunderbird: high 7.5
A maliciously constructed mail header could lead to a one byte read past the end of a buffer. 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-2026-84640#Debian:14/thunderbird
- https://security-tracker.debian.org/tracker/CVE-2026-84640
published · modified · JSON