Firetruck

CVE-2026-21519

KEV

Microsoft Windows Type Confusion Vulnerability

View CVE record →
Vendor / Project
Microsoft
Product
Windows
Date added
Feb 10, 2026
Due date
Mar 3, 2026
Known ransomware use
Unknown
CWEs
CWE-843

Description

Microsoft Desktop Windows Manager contains a type confusion vulnerability that could allow an authorized attacker to elevate privileges locally.

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.

Notes