Thinker Li

**Name of the Vulnerable Software and Affected Versions** Firefox versions prior to 137 Thunderbird versions prior to 137 **Description** The issue involves the leaking of file descriptors from the fork server to web content processes, which could allow for privilege escalation attacks. **Recommendations** For Firefox versions prior to 137, update to version 137 or later to resolve the issue. For Thunderbird versions prior to 137, update to version 137 or later to resolve the issue.