CVE-2025-21304: Microsoft Windows 10 1607

High severity, CVSS 7.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Microsoft DWM Core Library Elevation of Privilege Vulnerability

Affected products

• Microsoft Windows 10 1607: before 10.0.14393.7699 (fixed in 10.0.14393.7699)
• Microsoft Windows 10 1809: before 10.0.17763.6775 (fixed in 10.0.17763.6775)
• Microsoft Windows 10 21h2: before 10.0.19044.5371 (fixed in 10.0.19044.5371)
• Microsoft Windows 10 22h2: before 10.0.19045.5371 (fixed in 10.0.19045.5371)
• Microsoft Windows Server 2016: before 10.0.14393.7699 (fixed in 10.0.14393.7699)
• Microsoft Windows Server 2019: before 10.0.17763.6775 (fixed in 10.0.17763.6775)

Published 2025-01-14. Last modified 2026-06-17.