CVE-2026-28305
Received Received - Intake

Remote Code Execution in SolarWinds Serv-U via IDOR

Publication date: 2026-07-21

Last updated on: 2026-07-21

Assigner: SolarWinds

Description
SolarWinds Serv-U is affected by an insecure direct object reference (IDOR) vulnerability that can lead to remote code execution as root. A domain account with admin privileges and read and write access to the home directory is required. The impact is lower in Windows deployments.

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Meta Information

Published
2026-07-21
Last Modified
2026-07-21
Generated
2026-07-21
AI Q&A
2026-07-21
EPSS Evaluated
N/A
NVD
CVE-2026-28305
EUVD
EUVD-2026-46286

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
solarwinds serv-u 2026.3

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

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Executive Summary

SolarWinds Serv-U has an insecure direct object reference (IDOR) vulnerability that allows remote code execution as root. Exploitation requires a domain account with admin privileges and read/write access to the home directory. The impact is reduced in Windows environments.

Detection Guidance

Detecting CVE-2026-28305 requires checking if your SolarWinds Serv-U version is 15.5.4 HF1 or below. Use commands like 'servu-version' or check installed version via package manager. Verify if domain accounts have admin privileges and read/write access to home directories.

Impact Analysis

An attacker with the required privileges could execute arbitrary code remotely, potentially gaining full control over the affected system. This could lead to data breaches, system compromise, or further network infiltration.

Compliance Impact

This vulnerability could lead to unauthorized access and data exfiltration, violating confidentiality requirements in GDPR and HIPAA. Organizations may face compliance penalties if exploited.

Mitigation Strategies

Apply the latest security patches or updates from SolarWinds for Serv-U. Ensure domain accounts with admin privileges have restricted access to home directories. Monitor for unusual remote code execution attempts or unauthorized access.

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