CVE-2025-34227: nagios xi Command Injection

Description

Nagios XI < 2026R1 is vulnerable to an authenticated command injection vulnerability within the MongoDB Database, MySQL Query, MySQL Server, Postgres Server, and Postgres Query wizards. It is possible to inject shell characters into arguments provided to the service and execute arbitrary system commands on the underlying host as the `nagios` user.

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CVSS v3.1 Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-78 OS Command Injection

Affected Products

Vendor	Product	Versions
nagios	nagios_xi	< 2026

References

Advisories & Patches

https://www.nagios.com/products/security/

Exploits

https://theyhack.me/CVE-2025-34227-Nagios-XI-Wizard-Command-Injection/

Other References

https://www.nagios.com/changelog/ https://www.vulncheck.com/advisories/nagios-xi-config-wizard-auth-command-injection

Frequently Asked Questions

What is CVE-2025-34227? +

Nagios XI < 2026R1 is vulnerable to an authenticated command injection vulnerability within the MongoDB Database, MySQL Query, MySQL Server, Postgres Server, and Postgres Query wizards. It is possible to inject shell characters into arguments provided to the service and execute arbitrary system commands on the underlying host as the `nagios` user. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2025-34227? +

CVE-2025-34227 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-34227? +

CVE-2025-34227 affects products from nagios, specifically: nagios_xi. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-34227? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2025-34227