{"id":"CVE-2025-34284","state":"PUBLISHED","title":"Nagios XI < 2024R2 Authenticated Command Injection via WinRM Plugin","description":"Nagios XI versions prior to 2024R2 contain a command injection vulnerability in the WinRM plugin. Insufficient validation of user-supplied parameters allows an authenticated administrator to inject shell metacharacters that are incorporated into backend command invocations. Successful exploitation enables arbitrary command execution with the privileges of the Nagios XI web application user and can be leveraged to modify configuration, exfiltrate data, disrupt monitoring operations, or execute commands on the underlying host operating system.","publishedAt":"2025-10-30T21:30:19.179Z","updatedAt":"2026-09-30T17:20:05.017Z","severity":{"score":9.4,"label":"Critical","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","source":"VulnCheck"},"assigner":"VulnCheck","products":["Nagios XI"],"affected":[{"vendor":"Nagios","product":"XI","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2024R2","versionType":"custom"}],"modules":["WinRM plugin / WinRM wizard backend handlers"]}],"references":["https://www.nagios.com/products/security/#nagios-xi","https://www.nagios.com/changelog/nagios-xi/","https://www.vulncheck.com/advisories/nagios-xi-authenticated-command-injection-via-winrm-plugin"],"weaknesses":["CWE-78"],"ingestedAt":"2026-10-29T20:09:03.054Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/34xxx/CVE-2025-34284.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-34284","state":"PUBLISHED","datePublished":"2025-10-30T21:30:19.179Z","dateUpdated":"2026-09-30T17:20:05.017Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2025-04-15T19:15:22.581Z"},"containers":{"cna":{"title":"Nagios XI < 2024R2 Authenticated Command Injection via WinRM Plugin","descriptions":[{"lang":"en","value":"Nagios XI versions prior to 2024R2 contain a command injection vulnerability in the WinRM plugin. Insufficient validation of user-supplied parameters allows an authenticated administrator to inject shell metacharacters that are incorporated into backend command invocations. Successful exploitation enables arbitrary command execution with the privileges of the Nagios XI web application user and can be leveraged to modify configuration, exfiltrate data, disrupt monitoring operations, or execute commands on the underlying host operating system."}],"affected":[{"vendor":"Nagios","product":"XI","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2024R2","versionType":"custom"}],"modules":["WinRM plugin / WinRM wizard backend handlers"]}],"references":[{"url":"https://www.nagios.com/products/security/#nagios-xi","tags":["vendor-advisory","patch"]},{"url":"https://www.nagios.com/changelog/nagios-xi/","tags":["release-notes","patch"]},{"url":"https://www.vulncheck.com/advisories/nagios-xi-authenticated-command-injection-via-winrm-plugin","tags":["third-party-advisory"]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.4,"baseSeverity":"CRITICAL","privilegesRequired":"HIGH","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-78","description":"CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-09-30T17:20:05.017Z"},"cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:nagios:nagios_xi:2024:*:*:*:*:*:*:*","versionEndExcluding":"r2"}]}]}],"impacts":[{"capecId":"CAPEC-88","descriptions":[{"lang":"en","value":"CAPEC-88 OS Command Injection"}]}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<span style=\"background-color: rgb(255, 255, 255);\">Nagios addresses this vulnerability as \"</span><span style=\"background-color: rgb(255, 255, 255);\">Nagios XI was vulnerable to authenticated command injection via the WinRM plugin\" and \"Fixed security issue in WinRM wizard.\"</span><br>"}],"value":"Nagios addresses this vulnerability as \"Nagios XI was vulnerable to authenticated command injection via the WinRM plugin\" and \"Fixed security issue in WinRM wizard.\""}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"vulncheck"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-10-31T15:05:38.671942Z","id":"CVE-2025-34284","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-31T15:05:49.240Z"}}]}}}