Microsoft Defender Elevation of Privilege Vulnerability
At a glance
Severity
Not available
EPSS
EPSS 0.95 % · percentile 61 (2026-10-27)
State
PUBLISHED
Published
Updated
Assigner
microsoft
NVD status
Modified
Description
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. An attacker could then run a specially crafted command that could exploit the vulnerability and delete protected files on an affected system once MpSigStub.exe ran again.
The update addresses the vulnerability and blocks the arbitrary deletion.
