{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-66398","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2025-11-28T23:33:56.363Z","datePublished":"2026-01-01T18:00:38.575Z","dateUpdated":"2026-01-05T21:00:41.972Z"},"containers":{"cna":{"title":"Signal K Server has Unauthenticated State Pollution leading to Remote Code Execution (RCE)","problemTypes":[{"descriptions":[{"cweId":"CWE-78","lang":"en","description":"CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-913","lang":"en","description":"CWE-913: Improper Control of Dynamically-Managed Code Resources","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.7,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/SignalK/signalk-server/security/advisories/GHSA-w3x5-7c4c-66p9","tags":["x_refsource_CONFIRM"],"url":"https://github.com/SignalK/signalk-server/security/advisories/GHSA-w3x5-7c4c-66p9"},{"name":"https://github.com/SignalK/signalk-server/releases/tag/v2.19.0","tags":["x_refsource_MISC"],"url":"https://github.com/SignalK/signalk-server/releases/tag/v2.19.0"}],"affected":[{"vendor":"SignalK","product":"signalk-server","versions":[{"version":"< 2.19.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-01-01T18:00:38.575Z"},"descriptions":[{"lang":"en","value":"Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.19.0, an unauthenticated attacker can pollute the internal state (`restoreFilePath`) of the server via the `/skServer/validateBackup` endpoint. This allows the attacker to hijack the administrator's \"Restore\" functionality to overwrite critical server configuration files (e.g., `security.json`, `package.json`), leading to account takeover and Remote Code Execution (RCE). Version 2.19.0 patches this vulnerability."}],"source":{"advisory":"GHSA-w3x5-7c4c-66p9","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-05T21:00:27.609924Z","id":"CVE-2025-66398","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-01-05T21:00:41.972Z"}}]}}