[ CVE-2026-21519 · Published 10 Feb 2026 ]
Microsoft Windows Type Confusion Vulnerability
Exploited · CISA KEV CVSS 7.8
EPSS 2%No fix listed yet
[ Why it matters ]Priority signals
- Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2026-02-10
[ Description ]Official description
Access of resource using incompatible type ('type confusion') in Desktop Window Manager allows an authorized attacker to elevate privileges locally.
CISA: Microsoft Desktop Windows Manager contains a type confusion vulnerability that could allow an authorized attacker to elevate privileges locally.
[ Fixes ]Fixes and patches
CISA required action (US federal deadline 3 Mar 2026): Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ References ]References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21519Vendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource