Debian/firefox-esr: high 8.1
Memory safety bugs present in Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151. Some of these bugs showed evidence of memory corruption and we presume that with enough effor
Action: Upgrade firefox-esr to 140.12.0esr-1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 140.12.0esr-1 | - |
Fixed versions
| 140.12.0esr-1 |
Sources
- osv: DEBIAN-CVE-2026-12327#Debian:14/firefox-esr
- https://security-tracker.debian.org/tracker/CVE-2026-12327
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