CVE-2021-3193: Nagios XI

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

Improper access and command validation in the Nagios Docker Config Wizard before 1.1.2, as used in Nagios XI through 5.7, allows an unauthenticated attacker to execute remote code as the apache user.

Affected products

• Nagios Nagios XI: up to and including 5.7.0

Published 2021-01-26. Last modified 2026-06-17.