CVE-2026-2043

high · 8.8

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.

8.8

CVSS

73.7%

EPSS (exploit prob.)

99th

EPSS percentile

2026-02-20

Published

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-78

Affected products

Vendor	Product	Affected versions
nagios	nagios_xi	2026

Check a specific version with /api/v1/cve/match.

References

https://www.nagios.com/changelog/nagios-xi/nagios-xi-2026r1-0-1/
https://www.zerodayinitiative.com/advisories/ZDI-26-072/

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-2043