CVE-2025-2848: Synology Mail Server

Medium severity, CVSS 6.3. EPSS: 0.4% chance of exploitation in the next 30 days.

A vulnerability in Synology Mail Server allows remote authenticated attackers to read and write non-sensitive settings, and disable some non-critical functions.

Affected products

• Synology Mail Server: before 1.7.6-10676 (fixed in 1.7.6-10676); before 1.7.6-20676 (fixed in 1.7.6-20676)

Published 2025-12-04. Last modified 2026-09-25.