{"id":"CVE-2025-66593","aliases":["EUVD-2025-209963","GHSA-43p3-6ww8-9fwv"],"status":"published","title":"An origin validation error vulnerability in Synology Assistant before 7.0.6-50085 allows local...","description":"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.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00086,"percentile":0.00293,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-346"],"published":"2026-05-27T08:43:51Z","modified":"2026-10-07T08:10:00Z","products":[{"vendor":"synology","product":"assistant"},{"vendor":"synology","product":"synology assistant"}],"references":[{"url":"https://www.synology.com/en-global/security/advisory/Synology_SA_25_17","tags":["vendor-advisory","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-66593"},{"url":"https://github.com/advisories/GHSA-43p3-6ww8-9fwv"}],"sources":{"cve":[{"id":"CVE-2025-66593","description":"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.","status":"published","published":"2026-05-27T08:43:51.162Z","modified":"2026-06-02T08:21:55.359Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T14:32:53.157279Z"}],"euvd":[{"id":"EUVD-2025-209963","description":"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.","status":"published","published":"2026-05-27T08:43:51Z","modified":"2026-06-02T08:21:55Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","level":"medium"}],"updated_at":"2026-11-02T18:20:56.977213Z"}],"ghsa":[{"id":"GHSA-43p3-6ww8-9fwv","title":"An origin validation error vulnerability in Synology Assistant before 7.0.6-50085 allows local...","description":"An origin validation error vulnerability in Synology Assistant before 7.0.6-50085 allows local users to write arbitrary files with restricted content during installation.","status":"published","published":"2026-05-27T09:31:16Z","modified":"2026-05-27T09:31:24Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","level":"medium"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T15:08:20.329411Z"}],"nvd":[{"id":"CVE-2025-66593","description":"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.","status":"published","published":"2026-05-27T09:16:27.76Z","modified":"2026-10-07T08:10:00.2Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:H","level":"medium","assessor":"primary"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T14:12:02.090779Z"}]}}