Mitigation bypass in the File Handling component. This vulnerability was fixed in Firefox 157.0.1 and Thunderbird 158.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://www.mozilla.org/security/advisories/mfsa2026-104/ Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 9.8 · mozillaNVD modified 2026-10-13 19:18
Affected (CPE criteria) 1
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*