Mozilla Firefox and Firefox ESR Sandbox Escape Vulnerability in Responsive Design Mode

A sandbox escape vulnerability has been identified in the Responsive Design Mode component of Mozilla Firefox. This issue affects Firefox versions prior to 149, as well as Firefox ESR versions prior to 115.34 and prior to 140.9. The vulnerability arises from incorrect boundary conditions, which can be exploited to escape the sandbox environment.

Impact

Exploitation of this vulnerability allows for a sandbox escape, potentially leading to unauthorized access or actions outside the intended restrictions of the sandboxed environment.

Remediation

Users can upgrade to Firefox 149 or Firefox ESR 115.34 or 140.9 to address this vulnerability.