CVE-2020-5796: Nagios XI

High severity, CVSS 7.8. EPSS: 2% chance of exploitation in the next 30 days.

Improper preservation of permissions in Nagios XI 5.7.4 allows a local, low-privileged, authenticated user to weaken the permissions of files, resulting in low-privileged users being able to write to and execute arbitrary PHP code with root privileges.

Affected products

• Nagios Nagios XI: version 5.7.4 only

Published 2020-11-13. Last modified 2026-06-17.