CVE-2026-28306 SolarWinds Serv-U Privilege Escalation Vulnerability

What is CVE-2026-28306?

CVE-2026-28306 is a critical vulnerability in Solarwinds Serv-U, published on 21 Jul 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

SolarWinds Serv-U is affected by a privilege escalation vulnerability that allows a domain administrator to elevate their privileges to a system administrator. The impact is lower in Windows deployments.

Weakness: CWE-284

Which versions are affected by CVE-2026-28306?

It affects 1 product.

Products include Solarwinds Serv-U.

How do I fix CVE-2026-28306?

No fix has been published for CVE-2026-28306 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-28306 being exploited?

There is no known exploitation of CVE-2026-28306 in the wild and no public exploit code.

Other vulnerabilities in Solarwinds Serv-U

• CVE-2021-35211 SolarWinds Serv-U Remote Code Execution Exploited Critical 9.0
• CVE-2024-28995 SolarWinds Serv-U Path Traversal Vulnerability Exploited High 8.6
• CVE-2026-28318 SolarWinds Serv-U Uncontrolled Resource Consumption Exploited High 7.5
• CVE-2021-35247 SolarWinds Serv-U Improper Input Validation Exploited Medium 4.3
• CVE-2020-35481 Code injection in n/a Critical 9.8

All Solarwinds Serv-U vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-crvr-7853-c944.