Serv-U
CVE-2026-28309: SolarWinds Serv-U Broken Access Control Vulnerability
SolarWinds Serv-U is affected by a broken access control vulnerability that allows a domain administrator to create system administrator accounts.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityCRITICALCVSS 3.1 9.1
EPSS0.50%Chance of exploitation in 30 days
Public exploitNot tracked
FixSee advisory
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Serv-U (Windows, Linux) 15.5 | See the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
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.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.