Microsoft: Connected User Experiences and Telemetry Service Elevation of Privilege Vulnerability
An elevation of privilege vulnerability exists when the Connected User Experiences and Telemetry Service improperly handles file operations. An attacker who successfully exploited this vulnerability could gain elevated privileges on the victim system. To exploit the vulnerability, an attacker would first have to gain execution on the victim system, then run a specially crafted application. The security update addresses the vulnerability by correcting how the Connected User Experiences and Telemetry Service handles file operations.
Windows Server version 1909 (Server Core installation)
Windows Server version 1903 (Server Core installation)
Windows Server 2019
Windows Server version 2004 (Server Core installation)