How serious is CVE-2019-1161?

This vulnerability has a CVSS score of 7.1 out of 10, classified as HIGH severity. Proof-of-concept exploit code is publicly available, making this an active threat.

Is there exploit code available for CVE-2019-1161?

Yes, proof-of-concept exploit code for CVE-2019-1161 is publicly available on GitHub and security research platforms. This increases the risk of active exploitation.

Which products are affected by CVE-2019-1161?

CVE-2019-1161 affects microsoft windows defender. Check the full CVE details for specific version information.

How do I fix CVE-2019-1161?

To remediate CVE-2019-1161, check for security patches from microsoft. Apply all available updates and security patches. If no patch is available, implement recommended workarounds or security controls to mitigate the risk.

CVE-2019-1161

High

|7.1

Exploit Available

Plain English Summary

AI-powered analysis for quick understanding

This vulnerability allows an attacker who has logged into a Windows system to delete important files by tricking the system's Defender component into running a harmful command. To exploit this, the attacker needs to be logged in, making it a risk primarily for systems where unauthorized users can gain access.

Technical 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.

CVSS Vector Analysis

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

Confidentiality ImpactNone

Integrity ImpactHigh

Availability ImpactHigh

ScopeUnchanged

Vector String

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Exploit Resources

Search for proof-of-concept code and exploit modules

GitHub Search Exploit-DB Nuclei Templates Metasploit Vulners

Official References

NIST NVD

Est. Bounty

$1,211($1K-$5K)

Vendor Response

Grade FPatched in 2382 days

Quick Information

Published

Aug 14, 2019

over 6 years ago

Last Modified

Feb 20, 2026

about 2 months ago

Vendor

microsoft

Product

windows defender

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