Nagios Monitoringwizard Cmd Injection RCE
CVE-2026-2042 Published on February 20, 2026

Nagios Host monitoringwizard Command Injection Remote Code Execution Vulnerability
Nagios Host monitoringwizard Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Nagios Host. Authentication is required to exploit this vulnerability. The specific flaw exists within the monitoringwizard module. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-28245.

Vendor Advisory NVD

Weakness Type

What is a Shell injection Vulnerability?

The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

CVE-2026-2042 has been classified to as a Shell injection vulnerability or weakness.


Affected Versions

Nagios Host Version 2026R1 is affected by CVE-2026-2042

Exploit Probability

EPSS
2.22%
Percentile
84.24%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.