Synology DiskStation Manager up to 7.3.1/7.3.2-86009-4/7.4.1-90080-0 Media Parser path traversal

Summaryinfo

A vulnerability was found in Synology DiskStation Manager up to 7.3.1/7.3.2-86009-4/7.4.1-90080-0. It has been classified as very critical. The impacted element is an unknown function of the component Media Parser. Performing a manipulation results in path traversal. This vulnerability is known as CVE-2026-16550. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Synology DiskStation Manager up to 7.3.1/7.3.2-86009-4/7.4.1-90080-0. It has been classified as very critical. This affects an unknown code block of the component Media Parser. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An external control of file name or path vulnerability in the Media Parser in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1 allows remote authenticated users to write arbitrary files.

The advisory is shared at synology.com. This vulnerability is uniquely identified as CVE-2026-16550 since 07/22/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/12/2026). MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 7.3.2-86009-5 or 7.4.1-90080-1 eliminates this vulnerability.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Network Attached Storage Software

Vendor

• Synology

Name

• DiskStation Manager

Version

• 7.0
• 7.1
• 7.2
• 7.3
• 7.3.0
• 7.3.1
• 7.3.2-86009-4
• 7.4.1-90080-0

License

• commercial

Website

• Vendor: https://www.synology.com/

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