CVE-2026-2043 HIGH

CVE-2026-2043: Nagios Host esensors_websensor_configwizard_func Command Injection Remote Code Execution Vulnerability

Vendor Nagios
Product Host
Weakness CWE-78
Published February 20, 2026
Last update February 26, 2026
View on NVD All CVEs

CVSS base score

7.2/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

Nagios Host esensors_websensor_configwizard_func 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 esensors_websensor_configwizard_func method. 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-28249.

Key dates

02Disclosure timeline

February 20, 2026 CVE published
February 26, 2026 Record updated