Mitigation Bypass in Widget Component of Firefox by Mozilla
CVE-2026-92079

Currently unrated

Key Information:

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

What is CVE-2026-92079?

A mitigation bypass vulnerability has been identified in the Widget component of Mozilla Firefox, allowing potential exploitation that bypasses existing security mechanisms. This issue impacts Firefox versions prior to 156 and Firefox ESR prior to 153.3, necessitating users to update to the latest versions to safeguard against this threat.

Affected Version(s)

Firefox 153.3

Firefox 156

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2067531

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

https://www.mozilla.org/security/advisories/mfsa2026-93/

Download the Critical Vulnerability Management Cheat Sheet

Timeline

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

Credit

barbarossa404

CVE-2026-92079 Data

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