WebRender Component Vulnerability in Firefox by Mozilla
CVE-2026-124924

Currently unrated

Key Information:

Vendor: Mozilla
Status: Firefox
Vendor: CVE Published:; 10 November 2026

What is CVE-2026-124924?

The vulnerability in the WebRender component of Firefox is caused by incorrect handling of boundary conditions. This flaw could lead to unexpected behavior within the graphics rendering process, potentially impacting the security and stability of the browser. Users should ensure their Firefox installations are updated to version 160 or ESR version 153.7 to mitigate this issue.

Affected Version(s)

Firefox 153.7

Firefox 160

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2076710

https://www.mozilla.org/security/advisories/mfsa2026-125/

https://www.mozilla.org/security/advisories/mfsa2026-127/

Download the Critical Vulnerability Management Cheat Sheet

Timeline

Vulnerability published
Nov 10, 2026
Vulnerability Reserved
Nov 9, 2026

Credit

Mozilla

CVE-2026-124924 Data

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