CVE-2026-28304

Analyzed Analyzed - Analysis Complete

Remote Code Execution in SolarWinds Serv-U

Publication date: 2026-07-21

Last updated on: 2026-07-24

Assigner: SolarWinds

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-21

Last Modified

2026-07-24

Generated

2026-08-10

AI Q&A

2026-07-21

EPSS Evaluated

2026-08-09

NVD

CVE-2026-28304

EUVD

EUVD-2026-46285

Affected Vendors & Products

Vendor	Product	Version / Range
solarwinds	serv-u	to 2026.3 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

SolarWinds Serv-U versions 15.5.4 HF1 and below are affected by a critical remote code execution vulnerability. Attackers can execute arbitrary code remotely with root privileges. The impact is lower in Windows deployments.

Detection Guidance

Check if your SolarWinds Serv-U version is 15.5.4 HF1 or below. Compare installed version against Serv-U 2026.3. Use commands like 'servuadmin -version' on Linux or check Windows installed programs list.

Impact Analysis

An attacker could gain full control over the affected system, execute malicious code, and potentially access sensitive data or disrupt services. The high CVSS score of 9.1 indicates severe potential damage.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating compliance requirements under GDPR, HIPAA, and other regulations. Organizations must address it to maintain data protection standards.

Mitigation Strategies

Upgrade to Serv-U 2026.3 immediately. If immediate upgrade is not possible, isolate affected systems from the network and restrict remote access until patched.

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