Vulnerability Description
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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Solarwinds | Serv-U | < 2026.3 |
Related Weaknesses (CWE)
References
- https://documentation.solarwinds.com/en/success_center/servu/content/release_notRelease NotesVendor Advisory
- https://www.solarwinds.com/trust-center/security-advisories/CVE-2026-28321Vendor Advisory
FAQ
What is CVE-2026-28321?
CVE-2026-28321 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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 ...
How severe is CVE-2026-28321?
CVE-2026-28321 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-28321?
Check the references section above for vendor advisories and patch information. Affected products include: Solarwinds Serv-U.