Boundary Condition Flaw in Firefox and Firefox ESR

CVE-2026-4719

What is CVE-2026-4719?

A vulnerability exists in the Graphics: Text component of Mozilla Firefox that stems from incorrect boundary conditions. This flaw can potentially be exploited to disrupt the normal operation of affected versions of Firefox and Firefox ESR, specifically those below version 149 and 140.9 respectively. This issue highlights the need for users to update their browsers to safeguard against potential exploitation.

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