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.
History

Fri, 20 Feb 2026 21:00:00 +0000

Type Values Removed Values Added
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. 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.

cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2019-08-14T20:55:03.000Z

Updated: 2024-08-04T18:06:31.818Z

Reserved: 2018-11-26T00:00:00.000Z

Link: CVE-2019-1161

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-08-14T21:15:15.580

Modified: 2026-02-20T21:18:37.027

Link: CVE-2019-1161

cve-icon Redhat

No data.