CVE-2025-34134

HIGH
Published Oct 30, 2025 Modified Nov 6, 2025 CWE-78

Description

Nagios XI versions prior to 2024R1.4.2 contain a remote code execution vulnerability in the Business Process Intelligence (BPI) component. Insufficient validation and sanitization of administrator-controlled BPI configuration parameters (notably bpi_logfile and bpi_configfile) allow an authenticated administrative user to cause the product to create or overwrite files within the webroot and subsequently edit them via the BPI configuration editor. When such files carry executable extensions and are served by the web application, arbitrary code may be executed in the context of the web application user. Successful exploitation results in arbitrary command execution with the privileges of the Nagios XI web application user and can be leveraged to gain further control of the underlying host operating system.

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CVSS v3.1 Score

7.2
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-78 OS Command Injection

Affected Products

Vendor Product
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi
nagios nagios_xi

References

Frequently Asked Questions

What is CVE-2025-34134? +
Nagios XI versions prior to 2024R1.4.2 contain a remote code execution vulnerability in the Business Process Intelligence (BPI) component. Insufficient validation and sanitization of administrator-controlled BPI configuration parameters (notably bpi_logfile and bpi_configfile) allow an authenticated administrative user to cause the product to create or overwrite files within the webroot and subsequently edit them via the BPI configuration editor. When such files carry executable extensions and are served by the web application, arbitrary code may be executed in the context of the web application user. Successful exploitation results in arbitrary command execution with the privileges of the Nagios XI web application user and can be leveraged to gain further control of the underlying host operating system. It has a CVSS v3.1 base score of 7.2 (HIGH).
How severe is CVE-2025-34134? +
CVE-2025-34134 has a CVSS v3.1 score of 7.2 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2025-34134? +
CVE-2025-34134 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-2025-34134? +
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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