by Kastro
Paper/Archive/CVE-2025-34286

CVE-2025-34286

Nagios XI — Nagios XI < 2026R1 RCE via Run Check Command in CCM

EPSS 2%CVSS 9.4
critical.is priorityof 100
45
CVSS 9.4 (CNA)9.4 / 10 × 3028.2Not in CISA KEV+300.0EPSS percentile 84.1.841 × 2016.8No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
XI< 2026R12026R1CNA

Scores by source

VulnCheck (CNA)9.4CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

patchnagios.com/products/security/#nagios-xipatchnagios.com/changelog/nagios-xiwriteupvulncheck.com/advisories/nagios-xi-rce-via-run-check-command-in-ccm