Incorrect Permission Assignment Vulnerability in Synology DiskStation Manager
CVE-2026-13673

8.8HIGH

Key Information:

Vendor

Synology
Status
Diskstation Manager (dsm)
Vendor
CVE Published:
18 September 2026

What is CVE-2026-13673?

A vulnerability in Synology DiskStation Manager affects versions prior to 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4, and 7.4-90075, allowing remote authenticated users to gain unauthorized access to sensitive resources. This misconfiguration in the LDAP API permits users to read or write arbitrary files, posing significant risks for data integrity and availability. Exploitations may lead to denial-of-service attacks, raising concerns for users relying on Synology's services.

Affected Version(s)

DiskStation Manager (DSM) 7.4

DiskStation Manager (DSM) 7.4 < 7.4-90075

DiskStation Manager (DSM) 7.3.2 < 7.3.2-86009-4

References

https://www.synology.com/en-global/security/advisory/Syno...

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Lam Jun Rong (https://jro.sg)
.