CVE-2021-29083: Synology Diskstation Manager

High severity, CVSS 7.2. EPSS: 2.6% chance of exploitation in the next 30 days.

Improper neutralization of special elements used in an OS command in SYNO.Core.Network.PPPoE in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote authenticated users to execute arbitrary code via realname parameter.

Affected products

• Synology Diskstation Manager: before 6.2.3-25426-3 (fixed in 6.2.3-25426-3)

Published 2021-04-01. Last modified 2026-06-17.