{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2025-66593","sourceIdentifier":"security@synology.com","published":"2026-05-27T09:16:27.760","lastModified":"2026-10-07T08:10:00.200","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"An origin validation error vulnerability in Synology Assistant before 7.0.6-50085 allows local users to write arbitrary files with restricted content and conduct denial-of-service during installation."},{"lang":"es","value":"Una vulnerabilidad de error de validación de origen en Synology Assistant anterior a 7.0.6-50085 permite a usuarios locales escribir archivos arbitrarios con contenido restringido y realizar una denegación de servicio durante la instalación."}],"affected":[{"source":"security@synology.com","affectedData":[{"vendor":"Synology","product":"Synology Assistant","defaultStatus":"affected","versions":[{"version":"*","lessThan":"7.0.6-50085","versionType":"semver","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security@synology.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","baseScore":6.1,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":4.2},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:H","baseScore":5.6,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"HIGH"},"exploitabilityScore":1.3,"impactScore":4.2}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-05-27T12:14:21.119490Z","id":"CVE-2025-66593","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security@synology.com","type":"Secondary","description":[{"lang":"en","value":"CWE-346"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:synology:assistant:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.6-50085","matchCriteriaId":"D60EF831-1679-44D7-802D-C4454C34D682"}]}]}],"references":[{"url":"https://www.synology.com/en-global/security/advisory/Synology_SA_25_17","source":"security@synology.com","tags":["Vendor Advisory"]}]}}