CVE-2026-28309NVD

Vulnerability Summary

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.

Severity Level

CRITICAL(9.1)

Published Date

Jul 21, 2026

Last Modified

Jul 24, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

0.34%Probability

Root Weakness (CWE)

CWE-862: Missing Authorization ↗

The software does not perform an authorization check when an actor attempts to access a resource or perform an action.

CVSS v3.1 Base Metrics — Score 9.1 (CRITICAL)

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeChanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

Affected & Patched Versions

Affected Versions

Solarwinds Serv-u < 2026.3

Patched Versions

Solarwinds Serv-u 2026.3

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