A high-severity use-after-free vulnerability in Windows Remote Desktop Services allows an authenticated attacker to perform privilege escalation.

This is a use-after-free vulnerability occurring within Windows Remote Desktop Services. It requires an authenticated user to trigger the flaw, which can then be leveraged to achieve privilege escalation.

The CVSS score of 8.8 reflects the high risk of this vulnerability. While it requires the attacker to be authenticated, the ability to elevate privileges can lead to a complete compromise of the affected host, potentially allowing lateral movement throughout the corporate network and unauthorized access to sensitive data.

Immediate Action: Apply the relevant security updates provided by Microsoft in the July 2026 update cycle.

Proactive Monitoring: Audit Remote Desktop logs for unusual session activity or repeated authentication attempts followed by administrative task execution.

Compensating Controls: Limit access to Remote Desktop Services to only necessary administrative accounts and ensure that systems are segmented to prevent unauthorized lateral movement.

Public Exploit Available: No

Given the potential for privilege escalation, organizations should prioritize the deployment of the latest security patches from Microsoft across all affected Windows 10 and 11 environments. Ensure that all systems are updated according to the vendor security advisory.