CVE-2026-40535 - Vulnerability Details - OpenCVE

An improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Desktop API in Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7 and 7.3.2-86009-2 allows remote attackers to write limited files and conduct limited denial-of-service attacks.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact partial

Vendors	Products
Synology	Diskstation Manager

No data.

No data.

References

Link	Providers
https://www.synology.com/en-global/security/advisory/Synology_SA_26_06

History

Sat, 19 Sep 2026 22:30:00 +0000

Type	Values Removed	Values Added
First Time appeared		Synology Synology diskstation Manager
Vendors & Products		Synology Synology diskstation Manager

Sat, 19 Sep 2026 20:45:00 +0000

Type	Values Removed	Values Added
Title	Path Traversal in Synology DSM Desktop API Allows Limited File Write and DoS

Sat, 19 Sep 2026 01:15:00 +0000

Type	Values Removed	Values Added
Title		Path Traversal in Synology DSM Desktop API Allows Limited File Write and DoS

Fri, 18 Sep 2026 11:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Fri, 18 Sep 2026 08:45:00 +0000

Type	Values Removed	Values Added
Description		An improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Desktop API in Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7 and 7.3.2-86009-2 allows remote attackers to write limited files and conduct limited denial-of-service attacks.
Weaknesses		CWE-22
References		https://www.synology.com/en-global/security/advisory/Synology_SA_26_06
Metrics		cvssV3_1 `{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L'}`

MITRE

Status: PUBLISHED

Assigner: synology

Published: 2026-09-18T08:28:55.263Z

Updated: 2026-09-18T10:43:26.294Z

Reserved: 2026-04-14T01:01:14.607Z

Link: CVE-2026-40535

Vulnrichment

Updated: 2026-09-18T10:43:21.271Z

NVD

Status : Awaiting Analysis

Published: 2026-09-18T09:16:40.960

Modified: 2026-09-18T19:07:38.320

Link: CVE-2026-40535

Redhat

No data.

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