CVE-2022-21971: Microsoft Windows Runtime Remote Code Execution Vulnerability

High severity, CVSS 7.8. Actively exploited: in CISA KEV since 2022-08-18. EPSS: 53.9% chance of exploitation in the next 30 days.

Windows Runtime Remote Code Execution Vulnerability

Affected products

• Microsoft Windows 10 1809: before 10.0.17763.2565 (fixed in 10.0.17763.2565)
• Microsoft Windows 10 1909: before 10.0.18363.2094 (fixed in 10.0.18363.2094)
• Microsoft Windows 10 20h2: before 10.0.19042.1526 (fixed in 10.0.19042.1526)
• Microsoft Windows 10 21h1: before 10.0.19043.1526 (fixed in 10.0.19043.1526)
• Microsoft Windows 10 21h2: before 10.0.19044.1526 (fixed in 10.0.19044.1526)
• Microsoft Windows 11 21h2: before 10.0.22000.493 (fixed in 10.0.22000.493)
• Microsoft Windows Server 2019: before 10.0.17763.2565 (fixed in 10.0.17763.2565)
• Microsoft Windows Server 2022: before 10.0.20348.524 (fixed in 10.0.20348.524)
• Microsoft Windows Server 20h2: before 10.0.19042.1526 (fixed in 10.0.19042.1526)

Published 2022-02-09. Last modified 2026-06-17.