Microsoft: Provisioning Runtime Elevation of Privilege Vulnerability
An elevation of privilege vulnerability exists in the way the Provisioning Runtime validates certain file operations. An attacker who successfully exploited the vulnerability could gain elevated privileges on a victim system. To exploit the vulnerability, an attacker would require unprivileged code execution on a victim system. The security update addresses the vulnerability by correctly validating file operations.
Windows 10,Windows Server, version 1903 (Server Core installation),Windows Server, version 1803 (Server Core Installation),Windows Server, version 1909 (Server Core installation),Windows Server 2019