CVE-2026-28309
Received Received - Intake

Broken Access Control in SolarWinds Serv-U

Vulnerability report for CVE-2026-28309, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-07-21

Last updated on: 2026-07-21

Assigner: SolarWinds

Description

SolarWinds Serv-U is affected by a broken access control vulnerability that allows a domain administrator to create system administrator accounts. The impact is lower in Windows deployments.

CVSS Scores

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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
EUVD

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

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Executive Summary

SolarWinds Serv-U has a broken access control flaw where a domain administrator can create system administrator accounts. This allows unauthorized privilege escalation within the system.

Impact Analysis

An attacker with domain admin access could create system admin accounts, gaining full control over the Serv-U environment. This could lead to data breaches, unauthorized system modifications, or service disruption.

Compliance Impact

This vulnerability could violate compliance requirements by enabling unauthorized access to sensitive data, potentially leading to data breaches. Organizations may face penalties under GDPR or HIPAA for failing to protect user data.

Mitigation Strategies

Immediately review and restrict domain administrator privileges in SolarWinds Serv-U. Remove any unauthorized system administrator accounts created by domain admins. Apply the latest patches or updates from SolarWinds if available.

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