CVE-2021-40345: Nagios XI

High severity, CVSS 7.2. EPSS: 22.7% chance of exploitation in the next 30 days.

An issue was discovered in Nagios XI 5.8.5. In the Manage Dashlets section of the Admin panel, an administrator can upload ZIP files. A command injection (within the name of the first file in the archive) allows an attacker to execute system commands.

Affected products

• Nagios Nagios XI: version 5.8.5 only

Published 2021-10-26. Last modified 2026-06-17.