CVE-2025-66593 MEDIUM

CVE-2025-66593

Vendor Synology
Product Synology Assistant
Weakness CWE-346 · Origin validation
Published May 27, 2026
Last update June 2, 2026
View on NVD All CVEs

CVSS base score

6.1/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 27, 2026 CVE published
June 2, 2026 Record updated