CVE-2026-50328CWE-20CWE-248

Windows Server Update Service (WSUS) Tampering Vulnerability

High · published July 14, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
68.8
In the wild
Unconfirmed
What it is

Uncaught exception in Windows Server Update Service allows an unauthorized attacker to perform tampering over a network.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.01232 · 68.8th percentile
Weaknesses
CWE-20 · Improper Input Validation; CWE-248 · Uncaught Exception
Published
2026-07-14T17:06Z
EPSS history
Timeline
  • 14 JUL 17:06Z
    Windows Server Update Service (WSUS) Tampering Vulnerability
    cvelistv5