Description
Undefined behavior in the Audio/Video component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.
Metrics
CVSS 3.1 9.1/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | — |
| Mozilla | Thunderbird | — |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2014865Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2026-20/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-23/Vendor Advisory
Timeline
- Published
- Mar 24, 2026
- Last modified
- Jun 17, 2026
- NVD status
- Modified