# CVE-2026-16550: Synology DiskStation Manager Media Parser path traversal

Source: https://junglewise.ai/threats/cve-2026-16550-an-external-control-of-file-name-or-path-vulnerability-in-the  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-12. Updated: 2026-11-12  
License: CC BY 4.0 with a link back

CVE-2026-16550 · Severity: medium · CVSS 6.5 · Published 2026-11-12

Synology DiskStation Manager is a network storage operating system that manages data on NAS devices. A flaw in its Media Parser allows authenticated users to write arbitrary files to the system, potentially enabling data destruction, malware deployment, or system compromise on affected NAS appliances.

Technologies: [Synology DiskStation Manager](https://junglewise.ai/threats/technologies/diskstation-manager). Vendors: [Synology](https://junglewise.ai/threats/vendors/synology).

## Quick answers

**Is CVE-2026-16550 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-16550 being exploited in the wild.

**How severe is CVE-2026-16550?** Medium severity, with a CVSS score of 6.5, published 12 November 2026.

**Which products and versions are affected?** Synology DiskStation Manager before 7.3.2-86009-5 and 7.4.1-90080-1.

**Is there a fix for CVE-2026-16550?** Yes: fixed in DSM 7.3.2-86009-5, DSM 7.4.1-90080-1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-16550 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-16550?** Check whether you run Synology DiskStation Manager at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in DSM 7.3.2-86009-5, DSM 7.4.1-90080-1

## Technical details

An external control of file name or path vulnerability (CWE-73) in the Media Parser component allows authenticated remote users to write arbitrary files without integrity protection. The vulnerability requires valid user credentials but no administrative privileges. A successful exploit leads to arbitrary file write capability on the affected NAS system.

## Affected products

- Synology DiskStation Manager before 7.3.2-86009-5 and 7.4.1-90080-1

## Timeline

- 2026-11-10: disclosed
- 2026-11-12: advisory

## References

- [https://www.synology.com/en-global/security/advisory/Synology_SA_26_18](https://www.synology.com/en-global/security/advisory/Synology_SA_26_18)

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