CVE-2019-8917: SolarWinds Orion Network Performance Monitor

Critical severity, CVSS 9.8. EPSS: 36.4% chance of exploitation in the next 30 days.

SolarWinds Orion NPM before 12.4 suffers from a SYSTEM remote code execution vulnerability in the OrionModuleEngine service. This service establishes a NetTcpBinding endpoint that allows remote, unauthenticated clients to connect and call publicly exposed methods. The InvokeActionMethod method may be abused by an attacker to execute commands as the SYSTEM user.

Affected products

• SolarWinds Orion Network Performance Monitor: before 12.4 (fixed in 12.4)

Published 2019-02-18. Last modified 2026-06-17.