CVE-2026-50508: Microsoft Windows 10 1607

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

Exposure of sensitive information to an unauthorized actor in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.

Affected products

• Microsoft Windows 10 1607: before 10.0.14393.9234 (fixed in 10.0.14393.9234)
• Microsoft Windows 11 22h2: before 10.0.22631.7219 (fixed in 10.0.22631.7219)
• Microsoft Windows Server 2004: before 10.0.19045.7417 (fixed in 10.0.19045.7417)
• Microsoft Windows Server 2012: affected versions not specified; version r2 only
• Microsoft Windows Server 2016: before 10.0.14393.9234 (fixed in 10.0.14393.9234)
• Microsoft Windows Server 2022: before 10.0.20348.5256 (fixed in 10.0.20348.5256)

Published 2026-06-09. Last modified 2026-07-23.