Denial-of-Service Vulnerability in Firefox by Mozilla
CVE-2026-92063

Currently unrated

Key Information:

Vendor: Mozilla
Status: Firefox
Vendor: CVE Published:; 15 September 2026

What is CVE-2026-92063?

A denial-of-service vulnerability has been identified in the Audio/Video component of Firefox, which could potentially disrupt service availability for users. This issue was addressed in Firefox version 156, highlighting the need for users to update to secure their systems against exploitation. The flaw was reported in Bugzilla and further detailed in Mozilla's security advisories.

Affected Version(s)

Firefox 156

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2055737

https://www.mozilla.org/security/advisories/mfsa2026-90/

Download the Critical Vulnerability Management Cheat Sheet

Timeline

Vulnerability published
Sep 15, 2026
Vulnerability Reserved
Sep 15, 2026

Credit

He Huang

CVE-2026-92063 Data

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