Nagios Xi
CVE-2026-2043
HIGH
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Remote code execution in Nagios Xi through command injection in the esensors_websensor_configwizard_func method allows authenticated attackers to execute arbitrary commands with service account privileges. The vulnerability stems from insufficient input validation on user-supplied parameters passed to system calls. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Valid authentication credentials for Nagios Host required. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 8.8 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A remote attacker could exploit this vulnerability to execute arbitrary code on affected installations of Nagios Host. |
| Remediation | Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify and inventory all Nagios Host installations and assess which systems are internet-facing or accessible from untrusted networks; immediately disable the esensors_websensor_configwizard_func component if not actively used. …
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