Description
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.
Metrics
CVSS 3.1 6.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:LWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | — |
| Mozilla | Thunderbird | — |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1941002Exploit, Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2025-20/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-21/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-22/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-23/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-24/Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2025/04/msg00005.html
Timeline
- Published
- Apr 1, 2025
- Last modified
- Oct 5, 2026
- NVD status
- Modified