CVE-2026-50480: Microsoft Windows 10 1607

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

Heap-based buffer overflow in Windows Web Proxy Auto-Discovery Protocol (WPAD) allows an authorized attacker to elevate privileges locally.

Affected products

• Microsoft Windows 10 1607: before 10.0.14393.9339 (fixed in 10.0.14393.9339)
• Microsoft Windows Server 2012: affected versions not specified; version r2 only
• Microsoft Windows Server 2016: before 10.0.14393.9339 (fixed in 10.0.14393.9339)

Published 2026-07-14. Last modified 2026-07-21.