Use-after-free Vulnerability in Firefox by Mozilla
CVE-2026-92058

Currently unrated

Key Information:

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

What is CVE-2026-92058?

A use-after-free vulnerability exists in the Graphics component of Firefox, which could allow an attacker to execute arbitrary code. This issue has been addressed in Firefox version 156 and Firefox ESR version 153.3, mitigating the risks associated with this flaw. Users are urged to update to the latest versions to protect against potential exploits.

Affected Version(s)

Firefox 153.3

Firefox 156

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2068438

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-2026-92058 Data

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