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Vulnerabilities

Vulnerability · CVE-2025-34134

Nagios XI versions prior to 2024R1.4.2 contain a remote code execution vulnerability in the Business Process Intelligence (BPI) component.

Published Oct 30, 2025 · catalog updated Sep 30, 2026 · Nagios XI

Last checked Oct 27, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-34134. EPSS is 2.40%. Act only if a listed version of Nagios XI is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Critical9.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
2.40%
Remediation
Version ranges on file
Affected products
vendor Nagios XI 0 <2024R1.4.2

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 applicati

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Nagios XI 0 <2024R1.4.20 <2024R1.4.2

How to fix CVE-2025-34134

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-34134. EPSS is 2.40%. Act only if a listed version of Nagios XI is installed.

Which versions are affected?

Compare what you have installed with Nagios XI 0 <2024R1.4.2 0 <2024R1.4.2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 2.40%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 30, 2025 · EUVD

    Detected

    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 subseq

  2. Sep 30, 2026 · EUVD

    Updated

    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 subseq

Sources

  • CVE.orgVulnerability recordCVE-2025-34134

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-34134

    30-day exploitation probability 2.40%

    first.org
  • EUVDVulnerability recordEUVD-2025-37210

    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) al

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 27, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 27, 2026
  • CVE.orgOct 23, 2026
  • EUVDOct 23, 2026