CVE-2019-1161: Microsoft Defender Elevation of Privilege Vulnerability
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.
Other sources
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'.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is CVE-2019-1161?
CVE-2019-1161 is an elevation of privilege vulnerability in Microsoft Defender.
How does CVE-2019-1161 affect Windows Defender?
CVE-2019-1161 allows attackers to delete files in arbitrary locations using the MpSigStub.exe component of Windows Defender.
Who can exploit CVE-2019-1161?
To exploit CVE-2019-1161, an attacker would first need to log on to the system.
What is the severity of CVE-2019-1161?
CVE-2019-1161 is classified as a high severity vulnerability with a severity value of 7.1.
Where can I find more information about CVE-2019-1161?
More information about CVE-2019-1161 can be found at the following reference: [CVE-2019-1161](https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1161)