CVE-2026-28304 SolarWinds Serv-U Remote Code Execution Vulnerability

Critical 9.1 Published Updated

Remote attackers can execute arbitrary code with root privileges on SolarWinds Serv-U servers, requiring immediate patching.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-28304?

CVE-2026-28304 is a critical code injection 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 remote code execution vulnerability that, when exploited, can allow the arbitrary execution of code remotely as root. The impact is lower in Windows deployments.

Weakness: CWE-284

Which versions are affected by CVE-2026-28304?

It affects 1 product.

Products include Solarwinds Serv-U.

How do I fix CVE-2026-28304?

No fix has been published for CVE-2026-28304 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2026-28304 being exploited?

There is no known exploitation of CVE-2026-28304 in the wild and no public exploit code.

All Solarwinds Serv-U vulnerabilities

Sources

Also known as GHSA-2737-hj93-8fjw.

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