CVE-2026-13673: Synology Diskstation Manager Dsm

High severity, CVSS 8.8. EPSS: 0.4% chance of exploitation in the next 30 days.

An incorrect permission assignment for critical resource vulnerability in LDAP API in Synology DiskStation Manager (DSM) before 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4 and 7.4-90075 allows remote authenticated users to read or write arbitrary files and conduct denial-of-service attacks.

Affected products

• Synology Diskstation Manager Dsm: from 7.4, before 7.4-90075 (fixed in 7.4-90075); from 7.3.2, before 7.3.2-86009-4 (fixed in 7.3.2-86009-4); from 7.2.2, before 7.2.2-72806-9 (fixed in 7.2.2-72806-9); from 7.2.1, before 7.2.1-69057-12 (fixed in 7.2.1-69057-12)

Published 2026-09-18. Last modified 2026-09-18.