CVE-2020-5791: Nagios XI

High severity, CVSS 7.2. EPSS: 78.6% chance of exploitation in the next 30 days.

Improper neutralization of special elements used in an OS command in Nagios XI 5.7.3 allows a remote, authenticated admin user to execute operating system commands with the privileges of the apache user.

Affected products

• Nagios Nagios XI: from 5.6.0, up to and including 5.7.3

Published 2020-10-20. Last modified 2026-06-17.