Exploited vulnerability
CVE-2026-21519
TLP:CLEAR
Microsoft Windows Type Confusion Vulnerability
Microsoft Desktop Windows Manager contains a type confusion vulnerability that could allow an authorized attacker to elevate privileges locally.
Facts
- Vendor: Microsoft
- Product: Windows
- CVSS: 7.8
- EPSS (probability of exploitation within 30 days): 2.5 %
- On CISA's Known Exploited Vulnerabilities list since: 10 February 2026
- First known exploitation: 10 February 2026
- CISA's deadline for US federal agencies: 3 March 2026
- Weakness: CWE-843
- First seen by Risk Letters: 10 February 2026
Members see which Nordic sectors the flaw hits, and what to do about it.
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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD