An elevation of privilege vulnerability exists when Windows improperly handles objects in memory and incorrectly maps kernel memory, aka "Microsoft DirectX Graphics Kernel Subsystem Elevation of Privilege Vulnerability." This affects Windows Server 2012 R2, Windows RT 8.1, Windows Server 2012, Windows Server 2016, Windows 8.1, Windows 10, Windows 10 Servers.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-1009