Defender for Endpoint and Antivirus
CVE-2024-20671: Microsoft Defender Security Feature Bypass Vulnerability
Microsoft Defender Security Feature Bypass Vulnerability
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityMEDIUMCVSS 3.1 5.5
EPSS0.91%Chance of exploitation in 30 days
Public exploitNot tracked
FixAvailable
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Windows Defender Antimalware Platform (Unknown) 4.0 | 4.18.24010.12 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
Microsoft Defender Security Feature Bypass Vulnerability
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 11 Oct 2026.