CVE-2025-34134
Published: 30 October 2025
Summary
CVE-2025-34134 is a critical-severity OS Command Injection (CWE-78) vulnerability in Nagios Nagios Xi. Its CVSS base score is 9.4 (Critical).
Operationally, ranked in the top 19.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
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. The issue is tracked as CWE-78 and carries a CVSS 4.0 score of 9.4.
An authenticated administrative user can exploit the flaw to achieve arbitrary command execution with the privileges of the Nagios XI web application user. Successful exploitation can be leveraged to gain further control of the underlying host operating system.
Nagios advisory information and the product changelog indicate that the vulnerability is addressed in version 2024R1.4.2. Administrators are directed to apply the update available from the vendor's security and changelog resources.
The associated EPSS score remains low at 0.0135 with no material increase from its peak value.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-37210
Vulnerability details
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…
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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.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.