RCE in Nagios Xi
CVE-2025-34284
Nagios XI versions prior to 2024R2 contain a command injection vulnerability in the WinRM plugin. Insufficient validation of user-supplied parameters allows an authenticated administrator to inject shell metacharacters that are incorporated into backend command invocations. Successful exploitation enables arbitrary command execution with the privileges of the Nagios XI web application user and can be leveraged to modify configuration, exfiltrate data, disrupt monitoring operations, or execute commands on the underlying host operating system.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.041 (89.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Nagios Nagios_xi — versions 2024
- Nagios Xi — versions 0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory, patch, Vendor Advisory)
- disclosure@vulncheck.com (release-notes, Release Notes, patch)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2025-34284?
- CVE-2025-34284 is a high-severity vulnerability in Nagios Xi, classified under OS Command Injection. CVSS score: 8.8/10. Published 2025-10-30.
- How severe is CVE-2025-34284?
- High severity. CVSS v3 base score is 8.8 out of 10.