Broken Access Control Vulnerability in Serv-U by SolarWinds
CVE-2025-40538

9.1CRITICAL

Key Information:

Vendor

Solarwinds
Status
Serv-u
Vendor
CVE Published:
24 February 2026

What is CVE-2025-40538?

A vulnerability exists in Serv-U that allows an unauthorized actor to exploit broken access control mechanisms, enabling them to create system admin accounts. This access can lead to the execution of arbitrary code with elevated privileges, potentially compromising the entire system. The risk is particularly notable on Windows deployments where services often operate under less-privileged accounts by default.

Affected Version(s)

Serv-U Windows SolarWinds Serv-U 15.5.3 and prior versions

References

https://www.solarwinds.com/trust-center/security-advisori...
https://documentation.solarwinds.com/en/success_center/se...

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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