CVE-2025-13392: Synology Diskstation Manager

Critical severity, CVSS 9.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Improper check for unusual or exceptional conditions vulnerability in SSO in Synology DiskStation Manager (DSM) before 7.2.2-72806-5 and 7.3.1-86003-1 (7.2.1-69057 is not affected) allows remote attackers to bypass authentication with prior knowledge of the distinguished name (DN).

Affected products

• Synology Diskstation Manager: from 7.2.2, before 7.2.2-72806-5 (fixed in 7.2.2-72806-5); from 7.3, up to and including 7.3.1-86003-1

Published 2026-05-27. Last modified 2026-10-07.