SolarWinds Serv-U Missing Validation Vulnerability Allowing Remote Code Execution

Vulnerability

A remote code execution vulnerability has been identified in SolarWinds Serv-U due to a missing validation process. This issue can be exploited by a malicious actor with administrative privileges. On Windows deployments, the vulnerability is considered medium risk, as services typically run under less-privileged accounts by default.

Impact

Exploitation of this vulnerability allows for remote code execution on the affected system.

Remediation

Users can upgrade to SolarWinds Serv-U version 15.5.3, which addresses this vulnerability. The update is available on the SolarWinds website or through the Customer Portal.

Added: Nov 18, 2025, 9:22 AM
Updated: Nov 18, 2025, 3:03 PM

Vulnerability Rating

Custom Algorithm
spread
3.4
impact
10.0
exploitability
5.0
remediation
7.7
relevance
1.1
threat
0.0
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.