CVE-2025-10527 | BDVDB-2026-294121 Detail
MozillaFirefox
Description#
Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 143, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3.
Impact#
Per CVSS v3.1: confidentiality impact low, integrity impact low, availability impact low. Attack vector: network.
Weaknesses#
- CWE-416 Use After Free
References#
- https://bugzilla.mozilla.org/show_bug.cgi?id=1984825
- https://www.mozilla.org/security/advisories/mfsa2025-73/
- https://www.mozilla.org/security/advisories/mfsa2025-75/
- https://www.mozilla.org/security/advisories/mfsa2025-77/
- https://www.mozilla.org/security/advisories/mfsa2025-78/
- https://lists.debian.org/debian-lts-announce/2025/09/msg00026.html
- https://lists.debian.org/debian-lts-announce/2025/09/msg00020.html
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.