Microsoft Security Response CenterCVE-2026-50480

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

HighVendor CVSS 7.8 / 10 1 CVE Published Jul 14, 2026 at 7:00 AM UTC

Summary

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

Install KB5099535. Install KB5099445. Install KB5099415. Install KB5099444.

Jul 14, 2026 at 7:00 AM UTC
Published by Microsoft Security Response Center
The publication date reported by the vendor.
Sep 28, 2026 at 11:20 AM UTC
Added to SecurityAlert
We collected the advisory from the official source.
Nov 11, 2026 at 2:20 AM UTC
Confirmed at the source
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Details collected from Microsoft Security Response Center.

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