Microsoft Windows Server 2008 R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 allow local users to gain privileges via a crafted application that leverages incorrect impersonation handling in a process that uses the SeAssignPrimaryTokenPrivilege privilege, aka "Windows Create Process Elevation of Privilege Vulnerability."