Use-After-Free Vulnerability in Firefox by Mozilla
CVE-2026-92060

Currently unrated

Key Information:

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

What is CVE-2026-92060?

A use-after-free vulnerability exists in the Internationalization component of Firefox, potentially leading to unintended code execution. The issue has been addressed in Firefox version 156 and Firefox ESR version 153.3, safeguarding users against exploitation.

Affected Version(s)

Firefox 153.3

Firefox 156

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2027336

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

Mozilla

CVE-2026-92060 Data

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