CVE-2025-66593

Medium

Description

An origin validation error vulnerability in Synology Assistant before 7.0.6-50085 allows local users to write arbitrary files with restricted content and conduct denial-of-service during installation.

SeverityMedium

CVSS6.1

Exploit probability—

ProductSynology Assistant

PublishedMay 27, 2026

First seenMay 27, 2026

Weakness typeCWE-346CWE-346

How to fix

Update

synology assistant7.0.6-50085 or later

Vendor advisories

synology.com/en-global/security/advisory/Synology_SA_25_17

Affected products

Product	Affected versions	Fixed in
synology assistant	v < 7.0.6-50085	7.0.6-50085

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