January 18, 2022 · Applied Cybernetics Group
CVE-2021-25298 — Nagios Nagios XI
Nagios XI OS Command Injection
- Added to KEV
2022-01-18- Federal due date
2022-02-01- Vendor
- Nagios
- Product
- Nagios XI
- EPSS
- 99.5th percentile (score 0.750, as of
2026-07-13) - NVD CVSS v3.1
- 8.8 (HIGH)
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2021-25298
CISA short description
Nagios XI contains a vulnerability which can lead to OS command injection on the Nagios XI server.
Required action
Apply updates per vendor instructions.
NVD description
Nagios XI version xi-5.7.5 is affected by OS command injection. The vulnerability exists in the file /usr/local/nagiosxi/html/includes/configwizards/cloud-vm/cloud-vm.inc.php due to improper sanitization of authenticated user-controlled input by a single HTTP request, which can lead to OS command injection on the Nagios XI server.