CVE-2026-50480CWE-122

CVE-2026-50480

High · published July 14, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
25.4
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00333 · 25.4th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-07-14T22:17Z
Affected products (5)
ProductVersionsFixed in
microsoft/windows_10_1607< 10.0.14393.933910.0.14393.9339
microsoft/windows_10_1607< 10.0.14393.933910.0.14393.9339
microsoft/windows_server_2012all versions—
microsoft/windows_server_2012all versions—
microsoft/windows_server_2016< 10.0.14393.933910.0.14393.9339
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50480 · [email protected]
EPSS history
Timeline
  • 14 JUL 17:07Z
    Windows Web Proxy Auto-Discovery Protocol (WPAD) Elevation of Privilege Vulnerability
    cvelistv5