Affected: Microsoft Forefront Endpoint Protection, Microsoft System Center, Microsoft Security Essentials, Microsoft Windows Defender on Windows 10 Version 1909 for 32-bit Systems, Microsoft Windows Defender on Windows 10 Version 1909 for x64-based Systems, Microsoft Windows Defender on Windows 10 Version 1909 for ARM64-based Systems, Microsoft Windows Defender on Windows Server, version 1909 (Server Core installation), Microsoft Windows Defender on Windows 10 Version 1803 for 32-bit Systems, Microsoft Windows Defender on Windows 10 Version 1803 for x64-based Systems, Microsoft Windows Defender on Windows Server, version 1803 (Server Core Installation) and 34 more

An elevation of privilege vulnerability exists when the MpSigStub.exe for Defender allows file deletion in arbitrary locations.To exploit the vulnerability, an attacker would first have to log on to the system, aka 'Microsoft Defender Elevation of Privilege Vulnerability'.