Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nagios | Nagios Xi | 2026 |
Related Weaknesses (CWE)
References
- https://www.nagios.com/changelog/nagios-xi/nagios-xi-2026r1-0-1/ProductRelease Notes
- https://www.zerodayinitiative.com/advisories/ZDI-26-072/Third Party Advisory
FAQ
What is CVE-2026-2043?
CVE-2026-2043 is a vulnerability with a CVSS score of 8.8 (HIGH). Nagios Host esensors_websensor_configwizard_func Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations o...
How severe is CVE-2026-2043?
CVE-2026-2043 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-2043?
Check the references section above for vendor advisories and patch information. Affected products include: Nagios Nagios Xi.