Description
Memory safety bug present in Firefox ESR 128.10, and Thunderbird 128.10. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox ESR 128.11 and Thunderbird 128.11.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Mozilla Firefox
128.11 to ≤ *unaffected
Mozilla Thunderbird
128.11 to ≤ *unaffected
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1924108 ↗
- https://www.mozilla.org/security/advisories/mfsa2025-44/ ↗
- https://www.mozilla.org/security/advisories/mfsa2025-46/ ↗
- https://lists.debian.org/debian-lts-announce/2025/05/msg00046.html ↗
- https://lists.debian.org/debian-lts-announce/2025/05/msg00043.html ↗