CVE-2021-25296Nagios XI version xi-5.7.5 is affected by OS command injection.
Updated under an hour ago ()
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It affects nagios_xi. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Jan 18, 2022; federal agencies had to remediate by Feb 1, 2022. Treat that date as your deadline.
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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/windowswmi/windowswmi.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.
- CVSS
- 8.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Added to CISA KEV Jan 18, 2022; federal remediation due Feb 1, 2022Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 71.94% (percentile 99)
- Assigned by
- mitre
- NVD analysis
- Analyzed
- Record last updated
- Jul 9, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
nagios nagios_xi nagios:nagios_xi | from 5.5.6 through 5.7.5 | NVD |
References
- https://assets.nagios.com/downloads/nagiosxi/versions.phpproduct
- https://github.com/fs0c-sh/nagios-xi-5.7.5-bugs/blob/main/README.mdexploit, third-party-advisory
- http://packetstormsecurity.com/files/161561/Nagios-XI-5.7.5-Remote-Code-Execution.htmlexploit, third-party-advisory, vdb-entry
- http://packetstormsecurity.com/files/170924/Nagios-XI-5.7.5-Remote-Code-Execution.htmlthird-party-advisory, vdb-entry
- https://www.fastly.com/blog/anatomy-of-a-command-injection-cve-2021-25296-7-8-with-metasploit-module-andexploit, third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-25296us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.