Description
Use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Firefox ESR 115.30, Thunderbird 145, and Thunderbird 140.5.
Affected products
mozilla: firefox
References6
- www.mozilla.org/security/advisories/mfsa2025-87/ Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-88/ Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2025-89/ Vendor Advisory
- bugzilla.mozilla.org/show_bug.cgi?id=1994241 Permissions Required
- www.mozilla.org/security/advisories/mfsa2025-90/
- www.mozilla.org/security/advisories/mfsa2025-91/
Metrics
- CVSS 3.1
-
8.8
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 25 · as of 10 November 2026
- CWE
- CWE-416
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