Use-after-free triggered by XSLTProcessor
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.9%
exploitation probability
0.9%top 43% of all CVEs
observed exploitation
nono source reports it
JavaScript code running while transforming a document with the XSLTProcessor could lead to a use-after-free. This vulnerability was fixed in Firefox 137, Firefox ESR 115.22, Firefox ESR 128.9, Thunderbird 137, and Thunderbird 128.9.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
References
https://bugzilla.mozilla.org/show_bug.cgi?id=1941002https://lists.debian.org/debian-lts-announce/2025/04/msg00005.htmlhttps://www.mozilla.org/security/advisories/mfsa2025-20/https://www.mozilla.org/security/advisories/mfsa2025-21/https://www.mozilla.org/security/advisories/mfsa2025-22/https://www.mozilla.org/security/advisories/mfsa2025-23/https://www.mozilla.org/security/advisories/mfsa2025-24/