Description
A bug in WebAssembly code generation could have lead to a crash. It may have been possible for an attacker to leverage this to achieve code execution. This vulnerability was fixed in Firefox 135, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Mozilla Firefox
128.7 to ≤ 128.*unaffected135 to ≤ *unaffected
Mozilla Thunderbird
128.7 to ≤ 128.*unaffected135 to ≤ *unaffected
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1936454 ↗
- https://www.mozilla.org/security/advisories/mfsa2025-07/ ↗
- https://www.mozilla.org/security/advisories/mfsa2025-09/ ↗
- https://www.mozilla.org/security/advisories/mfsa2025-10/ ↗
- https://www.mozilla.org/security/advisories/mfsa2025-11/ ↗
- https://lists.debian.org/debian-lts-announce/2025/02/msg00006.html ↗
- https://lists.debian.org/debian-lts-announce/2025/02/msg00005.html ↗