Sandbox Escape Vulnerability in Firefox by Mozilla

CVE-2026-92071

What is CVE-2026-92071?

This security flaw involves a sandbox escape due to incorrect boundary conditions within the Widget: Win32 component of Firefox. By exploiting this vulnerability, an attacker may gain unauthorized access to the system. This issue has been resolved in Firefox version 156 and Firefox ESR version 153.3, highlighting the importance of keeping your software updated to mitigate potential security risks.

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