CVE-2017-16766

Severity: medium (CVSS 6.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-12-22 · updated 2026-06-17
Weakness: CWE-284

Description

An improper access control vulnerability in synodsmnotify in Synology DiskStation Manager (DSM) before 6.1.4-15217 and before 6.0.3-8754-6 allows local users to inject arbitrary web script or HTML via the -fn option.

Affected products

Synology DiskStation Manager: from 6.0.0 before 6.0.3-8754-6; from 6.1.0 before 6.1.4-15217 — fixed in 6.0.3-8754-6, 6.1.4-15217

How to fix

Upgrade to a fixed version: Synology DiskStation Manager 6.0.3-8754-6, 6.1.4-15217. Check the vendor advisory for mitigations.

References

https://www.synology.com/en-global/support/security/Synology_SA_17_74
https://www.synology.com/en-global/support/security/Synology_SA_17_74

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