CVE-2026-2042

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{"affected": [{"affectedData": [{"defaultStatus": "unknown", "product": "Host", "vendor": "Nagios", "versions": [{"status": "affected", "version": "2026R1"}]}], "source": "zdi-disclosures@trendmicro.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:nagios:nagios_xi:2026:r1:*:*:*:*:*:*", "matchCriteriaId": "DBAC321F-6345-4077-A82D-8CC02C21C358", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Nagios Host monitoringwizard 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.\n\nThe specific flaw exists within the monitoringwizard module. 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-28245."}, {"lang": "es", "value": "Vulnerabilidad de inyecci\u00f3n de comandos y ejecuci\u00f3n remota de c\u00f3digo en Nagios Host monitoringwizard. Esta vulnerabilidad permite a atacantes remotos ejecutar c\u00f3digo arbitrario en instalaciones afectadas de Nagios Host. Es preciso estar autenticado para explotar esta vulnerabilidad.\n\nLa falla se encuentra dentro del m\u00f3dulo monitoringwizard. El problema resulta de la falta de validaci\u00f3n adecuada de una cadena proporcionada por el usuario antes de usarla para ejecutar una llamada al sistema. Un atacante puede aprovechar esta vulnerabilidad para ejecutar c\u00f3digo en el contexto de la cuenta de servicio. Fue ZDI-CAN-28245."}], "id": "CVE-2026-2042", "lastModified": "2026-06-17T10:30:11.307", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.2, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 1.2, "impactScore": 5.9, "source": "zdi-disclosures@trendmicro.com", "type": "Secondary"}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-2042", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-02-25T04:55:48.696371Z", "version": "2.0.3"}}]}, "published": "2026-02-20T23:16:04.337", "references": [{"source": "zdi-disclosures@trendmicro.com", "tags": ["Product", "Release Notes"], "url": "https://www.nagios.com/changelog/nagios-xi/nagios-xi-2026r1-0-1/"}, {"source": "zdi-disclosures@trendmicro.com", "tags": ["Third Party Advisory"], "url": "https://www.zerodayinitiative.com/advisories/ZDI-26-071/"}], "sourceIdentifier": "zdi-disclosures@trendmicro.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-78"}], "source": "zdi-disclosures@trendmicro.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "2026R1"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "Host", "source": "cna", "vendor": "Nagios"}, "product": "host", "vendor": "nagios"}], "created": "2026-02-23T14:33:49.442400+00:00", "updated": "2026-06-18T04:45:15.700097+00:00", "vendors": ["nagios", "nagios$PRODUCT$host"]}