High severity7.1NVD Advisory· Published Aug 14, 2019· Updated Jun 17, 2026
CVE-2019-1161
CVE-2019-1161
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.
Affected products
13- cpe:2.3:a:microsoft:forefront_endpoint_protection_2010:-:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:security_essentials:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:microsoft:security_essentials:-:*:*:*:*:*:*:*
- (no CPE)range: N/A
cpe:2.3:a:microsoft:system_center_endpoint_protection:*:*:*:*:*:*:*:*+ 5 more
- cpe:2.3:a:microsoft:system_center_endpoint_protection:*:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:system_center_endpoint_protection:2012:-:*:*:*:*:*:*
- cpe:2.3:a:microsoft:system_center_endpoint_protection:2012:r2:*:*:*:*:*:*
- (no CPE)range: N/A
- (no CPE)range: N/A
- (no CPE)range: N/A
cpe:2.3:a:microsoft:windows_defender:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:microsoft:windows_defender:-:*:*:*:*:*:*:*
- (no CPE)range: N/A
- Range: N/A
Patches
Vulnerability mechanics
References
1- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1161nvdPatchVendor Advisory
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