CVE-2026-50480

HIGH

Windows Web Proxy Auto-Discovery Protocol (WPAD) Elevation of Privilege Vulnerability

Title source: cna
STIX 2.1

Description

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

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
Windows Web Proxy Auto-Discovery Protocol (WPAD) Elevation of Privilege Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50480

Scores

CVSS v3 7.8
EPSS 0.0024
EPSS Percentile 15.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-122
Status published
Products (11)
Microsoft/Windows 10 Version 1607 10.0.14393.0 - 10.0.14393.9339
Microsoft/Windows Server 2012 6.2.9200.0 - 6.2.9200.26226
Microsoft/Windows Server 2012 (Server Core installation) 6.2.9200.0 - 6.2.9200.26226
Microsoft/Windows Server 2012 R2 6.3.9600.0 - 6.3.9600.23291
Microsoft/Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 - 6.3.9600.23291
Microsoft/Windows Server 2016 10.0.14393.0 - 10.0.14393.9339
Microsoft/Windows Server 2016 (Server Core installation) 10.0.14393.0 - 10.0.14393.9339
microsoft/windows_10_1607 < 10.0.14393.9339 (2 CPE variants)
microsoft/windows_server_2012
microsoft/windows_server_2012 r2
... and 1 more
Published Jul 14, 2026
Tracked Since Jul 14, 2026