CVE-2025-34286Nagios XI < 2026R1 RCE via Run Check Command in CCM
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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Nagios XI versions prior to 2026R1 contain a remote code execution vulnerability in the Core Config Manager (CCM) Run Check command. Insufficient validation/escaping of parameters used to build backend command lines allows an authenticated administrator to inject shell metacharacters that are executed on the server. Successful exploitation results in arbitrary command execution with the privileges of the Nagios XI web application user and can be leveraged to gain control of the underlying host operating system.
- CVSS
- 9.4 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
- Weakness (CWE)
- CWE-78
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Analyzed
- Record last updated
- May 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Nagios XI nagios:xi (from the name) | before 2026R1 | CNA record |
nagios nagios_xi nagios:nagios_xi | before 2026 | NVD |
References
- https://www.nagios.com/products/security/#nagios-xivendor-advisory, patch
- https://www.nagios.com/changelog/nagios-xi/release-notes, patch
- https://www.vulncheck.com/advisories/nagios-xi-rce-via-run-check-command-in-ccmthird-party-advisory
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.