CISA description
A remote code execution vulnerability exists in the Forefront Threat Management Gateway (TMG) Firewall Client Winsock provider that could allow code execution in the security context of the client application.
CVE-2011-1889
Microsoft · Forefront Threat Management Gateway (TMG)
Microsoft Forefront TMG Remote Code Execution Vulnerability
Required action
Apply updates per vendor instructions.
Notes & references
Where this lands in 800-53
Vulnerability data triggers these controls during assessment and continuous monitoring.