CVE-2025-34227

Name: CVE-2025-34227
Creator: NVD / NIST
Published: 2025-09-25T17:15:38.467+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.6/10EPSS 25.92%

Last modified Jun 17, 2026

CVE-2025-34227 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. 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.. EPSS estimates a 25.92% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

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

CVSS 4.0

8.6/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

25.92%

97.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Nagios	Nagios Xi	<= 2026

References

https://theyhack.me/CVE-2025-34227-Nagios-XI-Wizard-Command-Injection/Exploit, Third Party Advisory
https://www.nagios.com/changelog/Release Notes
https://www.nagios.com/products/security/Vendor Advisory
https://www.vulncheck.com/advisories/nagios-xi-config-wizard-auth-command-injectionThird Party Advisory

Timeline

Published: Sep 25, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-34227?

How severe is CVE-2025-34227?

CVE-2025-34227 has a CVSS score of 8.6/10 (HIGH severity). The EPSS model estimates a 25.92% probability of exploitation in the next 30 days.

How do I fix CVE-2025-34227?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-34227?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST