Microsoft Defender Vulnerability
Microsoft Defender contains a link following vulnerability that allows an authorized attacker to elevate privileges locally.
CVSS Score
9.8
CRITICAL
Published
20 May 2026 00:00
Modified
N/A
Vendor
Microsoft
Product
Defender
Source
CIRCL
Affected Versions
Fix
Vendor Patch / Mitigation Available
Weaknesses (CWE)
CWE-59
Affected Systems
Microsoft
Defender
Microsoft
Windows Ancillary Function Driver For WinSock
SharePoint
Active Directory Federation Services
SharePoint Server
Windows
DirectX
Internet Explorer
Defender
Microsoft
Office
Visual Basic For Applications (VBA)
External Links
KEV Status
Known Exploited Vulnerability