CVE-2025-34284

CRITICAL EPSS 89.7%
Published Oct 30, 20258mo ago · Modified Jun 17, 20261w ago
9.4 CVSS 4.0
Critical
Find Similar
Published Oct 30, 2025 8mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
9.4
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
89.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-78 OS Command Injection Injection

Affected Products 23

VendorProductVersionRange
nagiosnagios_xi* <2024
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any
nagiosnagios_xi2024any

References 3

  • nagios.com https://www.nagios.com/changelog/nagios-xi/
    Release Notes
  • nagios.com https://www.nagios.com/products/security/#nagios-xi
    Vendor Advisory
  • vulncheck.com https://www.vulncheck.com/advisories/nagios-xi-authenticated-command-injection-via-winrm-plugin
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.