Improper link resolution before file access ('link following') in Microsoft Defender allows an authorized attacker to elevate privileges locally.
CISA Catalog
Date Added
Due Date
Vulnerability Name
Required Action
2026-05-20
2026-06-03
Microsoft Defender Link Following Vulnerability
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Date Added: 2026-05-20
Due Date: 2026-06-03
Vulnerability Name: Microsoft Defender Link Following Vulnerability
Required Action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.