CVE-2026-50418: Microsoft Windows 11 24h2

Medium severity, CVSS 6.1. EPSS: 0.3% chance of exploitation in the next 30 days.

Improper access control in Windows System allows an unauthorized attacker to bypass a security feature locally.

Affected products

• Microsoft Windows 11 24h2: before 10.0.26100.8875 (fixed in 10.0.26100.8875)
• Microsoft Windows 11 25h2: before 10.0.26200.8875 (fixed in 10.0.26200.8875)
• Microsoft Windows 11 26h1: before 10.0.28000.2269 (fixed in 10.0.28000.2269); before 10.0.28000.2525 (fixed in 10.0.28000.2525)
• Microsoft Windows Server 2022: before 10.0.20348.5386 (fixed in 10.0.20348.5386)
• Microsoft Windows Server 2025: before 10.0.26100.33158 (fixed in 10.0.26100.33158)

Published 2026-07-14. Last modified 2026-07-22.