Serv-U
CVE-2026-28321: SolarWinds Serv-U Broken Access Control Vulnerability
SolarWinds Serv-U is affected by a broken access control vulnerability that could allow arbitrary file read and write, which can then be used to escalate privileges and execute code as root.
Published
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 could allow arbitrary file read and write, which can then be used to escalate privileges and execute code as root. A domain administrator access is required, and the impact is lower in Windows installations.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.