THREATPORT/VULNERABILITY/CVE-2025-34227
HIGH SEVERITY

CVE-2025-34227

Nagios Xi vulnerability

CVSS
8.8
EPSS
25.9%
EPSS pct
98th
Exploited
No known
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.
Affected vendor
Nagios
Affected product
Nagios Xi
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-78 — OS Command Injection
Published
2025-09-25

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 25.9% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2025-34227

  • Confirm whether Nagios Nagios Xi is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2025-34227.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2025-34227

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