{"id":"CVE-2026-18596","aliases":["EUVD-2026-124183","GHSA-3grq-vh3r-2ww4"],"status":"published","title":"An authentication bypass using an alternate path or channel vulnerability in the OTP in Synology...","description":"An authentication bypass using an alternate path or channel vulnerability in the OTP in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1 allows remote attackers with valid user credentials to read or write arbitrary files and conduct denial-of-service attacks.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-14","score":0.00664,"percentile":0.52341,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-288"],"published":"2026-11-12T03:32:58Z","modified":"2026-11-12T06:30:29Z","products":[{"vendor":"synology","product":"diskstation manager (dsm)"}],"references":[{"url":"https://www.synology.com/en-global/security/advisory/Synology_SA_26_18"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-18596"},{"url":"https://github.com/advisories/GHSA-3grq-vh3r-2ww4"}],"sources":{"cve":[{"id":"CVE-2026-18596","description":"An authentication bypass using an alternate path or channel vulnerability in the OTP in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1 allows remote attackers with valid user credentials to read or write arbitrary files and conduct denial-of-service attacks.","status":"published","published":"2026-11-12T03:32:58.551Z","modified":"2026-11-12T03:32:58.551Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-288"],"updated_at":"2026-11-12T04:37:17.913628Z"}],"euvd":[{"id":"EUVD-2026-124183","description":"An authentication bypass using an alternate path or channel vulnerability in the OTP in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1 allows remote attackers with valid user credentials to read or write arbitrary files and conduct denial-of-service attacks.","status":"published","published":"2026-11-12T03:32:58Z","modified":"2026-11-12T03:32:58Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-12T08:32:31.16979Z"}],"ghsa":[{"id":"GHSA-3grq-vh3r-2ww4","title":"An authentication bypass using an alternate path or channel vulnerability in the OTP in Synology...","description":"An authentication bypass using an alternate path or channel vulnerability in the OTP in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1 allows remote attackers with valid user credentials to read or write arbitrary files and conduct denial-of-service attacks.","status":"published","published":"2026-11-12T06:30:21Z","modified":"2026-11-12T06:30:29Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-288"],"updated_at":"2026-11-12T06:38:20.494135Z"}],"nvd":[{"id":"CVE-2026-18596","description":"An authentication bypass using an alternate path or channel vulnerability in the OTP in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1 allows remote attackers with valid user credentials to read or write arbitrary files and conduct denial-of-service attacks.","status":"published","published":"2026-11-12T04:17:18.88Z","modified":"2026-11-12T18:50:59.773Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-288"],"updated_at":"2026-11-12T06:28:14.789027Z"}]}}