Boundary Condition Vulnerability in Firefox Audio/Video Component
CVE-2026-16359

Currently unrated

Key Information:

Vendor: Mozilla
Status: Firefox
Vendor: CVE Published:; 21 July 2026

What is CVE-2026-16359?

A boundary condition error in the Audio/Video component of Firefox could allow an attacker to exploit the handling of certain input data. This vulnerability affects specific versions of Firefox and can lead to unexpected behavior in the application. Mozilla has released patches in Firefox 153, as well as in Firefox ESR 115.38 and 140.13, to mitigate this issue.

Affected Version(s)

Firefox 115.38

Firefox 140.13

Firefox 153

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2045424

https://www.mozilla.org/security/advisories/mfsa2026-68/

https://www.mozilla.org/security/advisories/mfsa2026-69/

Download the Critical Vulnerability Management Cheat Sheet

Timeline

Vulnerability published
Jul 21, 2026
Vulnerability Reserved
Jul 20, 2026

Credit

Jacolon Walker

CVE-2026-16359 Data

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