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Home - Vulnerability NotesPrint
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CERT-In Vulnerability Note CIVN-2025-0374
Security Restriction Bypass Vulnerability in Synology DiskStation Manager

Original Issue Date:December 17, 2025

Severity Rating: HIGH

Software Affected

  • DSM version prior to 7.3.1-86003-1
  • DSM version prior to 7.2.2-72806-5

Overview

A vulnerability has been identified in Synology DiskStation Manager (DSM), which could allow a remote attacker to bypass security restrictions on the targeted system.

Target Audience:
Users and administrators of affected Synology DiskStation Manager (DSM) installations.

Risk Assessment:
Risk of unauthorized access and sensitive information disclosure.

Impact Assessment:
Exploitation could allow disclosure of sensitive user information.

Description

Synology DiskStation Manager (DSM) is a Linux-based operating system that provides a centralized platform for managing storage, files, applications, and services on Synology NAS devices.

The vulnerability exists due to a flaw in the authentication logic of DSM, where knowledge of a valid LDAP distinguished name (DN) may cause the system to incorrectly treat an unauthenticated request as authenticated. This improper handling can allow an attacker to bypass intended security restrictions.

Successful exploitation of the vulnerability could allow a remote attacker to trigger security restriction bypass on the targeted system.

Solution

Apply appropriate fixes as mentioned in Synology Security Advisory:
https://www.synology.com/en-us/security/advisory/Synology_SA_25_14

Vendor Information

 
https://www.synology.com/en-us/security/advisory/Synology_SA_25_14

CVE Name
CVE-2025-13392

Disclaimer

The information provided herein is on "as is" basis, without warranty of any kind.

Contact Information

Email: info@cert-in.org.in
Phone: +91-11-22902657

Postal address

Indian Computer Emergency Response Team (CERT-In)
Ministry of Electronics and Information Technology
Government of India
Electronics Niketan
6, CGO Complex, Lodhi Road,
New Delhi - 110 003
India

 
Indian Computer Emergency Response Team - CERT-In, Ministry of Electronics and Information Technology, Government of India.
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