PT-2026-43591 · Synology · Synology Assistant

Sheikh Rishad · Published 2026-05-27 · Updated 2026-06-01 · CVE-2025-66593

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Synology Assistant versions prior to 7.0.6-50085

Description An origin validation error allows local users to write arbitrary files with restricted content during the installation process.

Recommendations Update to version 7.0.6-50085 or later.

Fix

Origin Validation Error

Weakness Enumeration

CWE-346

Related Identifiers

CVE-2025-66593

Affected Products

Synology Assistant

References · 4

• https://synology.com/en-global/security/advisory/Synology_SA_25_17 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-66593 · Security Note
• https://t.me/cveNotify/165530 · Telegram Post
• https://twitter.com/dailycve/status/2061594021860905288 · Twitter Post