CVE-2025-66593

MEDIUM

Synology Assistant < 7.0.6-50085 - Origin Validation Error

Title source: rule

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.

References (1)

Core 1

Core References

Vendor Advisory vendor-advisory

Synology-SA-25:17 Synology Assistant

https://www.synology.com/en-global/security/advisory/Synology_SA_25_17

Scores

CVSS v3 6.1

EPSS 0.0009

EPSS Percentile 0.4%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-346

Status published

Products (2)

synology/assistant < 7.0.6-50085

Synology/Synology Assistant < 7.0.6-50085

Published May 27, 2026

Tracked Since May 27, 2026