HIGH

CVE-2025-34227

Q: 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.

Q: Is CVE-2025-34227 actively exploited?

Active exploitation of CVE-2025-34227 has not been confirmed. Its EPSS score was 25.4% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2025-34227?

CVE-2025-34227 has a CVSS v3 base score of 8.8 (HIGH severity).

CVSS v3

8.8

HIGH

EPSS Score

25.4 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2025-34227 yet.

Full record on NVD

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.

Technical details

Published: 2025-09-25

Frequently asked questions

What is CVE-2025-34227?

Is CVE-2025-34227 actively exploited?

Active exploitation of CVE-2025-34227 has not been confirmed. Its EPSS score was 25.4% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-34227?

CVE-2025-34227 has a CVSS v3 base score of 8.8 (HIGH severity).

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