CVE-2020-27655: Synology Router Manager

Critical severity, CVSS 10.0. EPSS: 1.8% chance of exploitation in the next 30 days.

Improper access control vulnerability in Synology Router Manager (SRM) before 1.2.4-8081 allows remote attackers to access restricted resources via inbound QuickConnect traffic.

Affected products

• Synology Router Manager: from 1.2, before 1.2.4-8081 (fixed in 1.2.4-8081)

Published 2020-10-29. Last modified 2026-06-17.