CVE-2026-2043 PUBLISHED

Nagios Host esensors_websensor_configwizard_func Command Injection Remote Code Execution Vulnerability

Assigner: zdi
Reserved: 06.02.2026 Published: 20.02.2026 Updated: 20.02.2026

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.

Metrics

CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 7.2

Product Status

Vendor Nagios
Product Host
Versions Default: unknown
  • Version 2026R1 is affected

References

Problem Types

  • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') CWE