CVE-2026-4724

Description

Undefined behavior in the Audio/Video component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.

PUBLISHED Reserved 2026-03-23 | Published 2026-03-24 | Updated 2026-04-13 | Assigner mozilla

Product status

Credits

Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic

References

bugzilla.mozilla.org/show_bug.cgi?id=2014865

www.mozilla.org/security/advisories/mfsa2026-20/

www.mozilla.org/security/advisories/mfsa2026-23/

cve.org (CVE-2026-4724)

nvd.nist.gov (CVE-2026-4724)

Download JSON