Type Confusion Vulnerability in Serv-U by SolarWinds
CVE-2025-40540

9.1CRITICAL

Key Information:

Vendor

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

What is CVE-2025-40540?

A type confusion vulnerability has been identified in Serv-U, which allows a malicious actor to execute arbitrary native code with elevated privileges. This vulnerability can be exploited particularly when the application is operated with administrative rights. Windows deployments may present heightened risks as services often run under lower-privileged accounts by default. Effective management and regular updates are essential to mitigate potential exploitations of this security flaw.

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

.