Use-After-Free Vulnerability in Firefox ESR Products by Mozilla

CVE-2026-100832

What is CVE-2026-100832?

A use-after-free vulnerability exists in the Graphics: Canvas2D component of Firefox ESR products. This flaw can lead to potential memory corruption, allowing attackers to exploit this issue to execute arbitrary code or crash the application. The vulnerability has been addressed in Firefox ESR versions 153.4, 115.42, and 140.17, which include patches to enhance security and mitigate the risks associated with this flaw.

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