Is CVE-2026-2042 actively exploited?

No active exploitation of CVE-2026-2042 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-2042 be exploited remotely?

Yes. CVE-2026-2042 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-2042?

CVE-2026-2042 has a CVSS score of 8.8 (HIGH) and an EPSS exploitation probability of 2.22%.

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HIGH

CVE-2026-2042

CWE-78Published: February 20, 2026· Updated: Feb 24, 2026

8.8

CVSS v3.1

EPSS:1.25%probability of exploitation in 30 daysPercentile:79.1th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-2042 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.