CVE-2025-34284HIGH 8.8EPSS p88.7%

CVE-2025-34284CVE-2025-34284

Description

Nagios XI versions prior to 2024R2 contain a command injection vulnerability in the WinRM plugin. Insufficient validation of user-supplied parameters allows an authenticated administrator to inject shell metacharacters that are incorporated into backend command invocations. Successful exploitation enables arbitrary command execution with the privileges of the Nagios XI web application user and can be leveraged to modify configuration, exfiltrate data, disrupt monitoring operations, or execute commands on the underlying host operating system.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS3.83% probability of exploitation · percentile 88.7% · 2026-06-19T12:03:05Z
Published2025-10-30
Last modified2025-11-06

Underlying weaknesses· 1

CWE-78

References

  1. https://www.nagios.com/changelog/nagios-xi/
  2. https://www.nagios.com/products/security/#nagios-xi
  3. https://www.vulncheck.com/advisories/nagios-xi-authenticated-command-injection-via-winrm-plugin

1

TypeTargetConfidenceTier
WeaknessImproper Neutralization of Special Elements used in an OS Command ('OS Command Injection')cwe-780%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
Nagios XI OS Command Injection
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CVE-2025-34227
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CVE-2025-34277
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CVE-2026-2042
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CVE-2025-67255
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CVE-2026-2041
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.