CVE-2026-28309CWE-862

SolarWinds Serv-U Broken Access Control Vulnerability

Critical · published July 21, 2026

CVSS v3.1
9.1
EPSS
0%
Percentile
41.6
In the wild
Unconfirmed
What it is

SolarWinds Serv-U is affected by a broken access control vulnerability that allows a domain administrator to create system administrator accounts. The impact is lower in Windows deployments.

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00495 · 41.6th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-07-21T15:34Z
EPSS history
Timeline
  • 21 JUL 15:34Z
    SolarWinds Serv-U Broken Access Control Vulnerability
    cvelistv5