Review reviewHigh

CVE-2026-50480

Microsoft Windows 10 Version 1607, Windows Server 2012, Windows Server 2012 (Server Core installation)

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

PRIORITY ASSESSMENT

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.24%

Technical severityCVSS 7.8

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

Product: Microsoft Windows 10 Version 1607, Windows Server 2012, Windows Server 2012 (Server Core installation)
Affected versions: >= 10.0.14393.0 < 10.0.14393.9339, >= 6.2.9200.0 < 6.2.9200.26226, >= 6.3.9600.0 < 6.3.9600.23291, < 10.0.14393.9339, r2
Fixed versions: 10.0.14393.9339

Confirm exposure before applying a vendor-supported change.

1
Identify
Confirm that Microsoft Windows 10 Version 1607, Windows Server 2012, Windows Server 2012 (Server Core installation) and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.