CVE-2026-28317
Received Received - Intake

Privilege Escalation via IDOR in SolarWinds Serv-U

Vulnerability report for CVE-2026-28317, 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 an insecure direct object reference (IDOR) vulnerability that can lead to privilege escalation. This issue requires domain administrator access. The impact is lower in Windows deployments.

CVSS Scores

EPSS 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 3 associated CPEs
Vendor Product Version / Range
solarwinds serv-u *
solarwinds serv-u to 2026.3 (exc)
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.

Attack-Flow Graph

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Executive Summary

SolarWinds Serv-U has an insecure direct object reference (IDOR) vulnerability that allows privilege escalation. It requires domain administrator access to exploit and has reduced impact in Windows environments.

Detection Guidance

Detection requires checking if SolarWinds Serv-U versions 15.5.4 HF1 or below are installed. Review system logs for unusual privilege escalation attempts. No specific commands are provided in the context.

Impact Analysis

An attacker with domain admin access could escalate privileges, potentially gaining full control over the system. This could lead to unauthorized access, data breaches, or further network compromise.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, which may violate compliance requirements such as GDPR or HIPAA. Organizations must address it to maintain regulatory adherence.

Mitigation Strategies

Apply the latest security patches from SolarWinds immediately. Restrict domain administrator access to only necessary personnel. Monitor Serv-U logs for unusual privilege escalation attempts.

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