The Desktop Bridge Virtual File System (VFS) in Windows 10 1607, 1703, and 1709, Windows Server 2016 and Windows Server, version 1709 allows an elevation of privilege vulnerability due to how file paths are managed, aka "Windows Desktop Bridge VFS Elevation of Privilege Vulnerability".
The handling of the VFS for desktop bridge applications can allow an application to create virtual files in system folder which can result in elevation of privilege.