CVE-2021-43929: Synology Diskstation Manager

Medium severity, CVSS 5.4. EPSS: 0.6% chance of exploitation in the next 30 days.

Improper neutralization of special elements in output used by a downstream component ('Injection') vulnerability in work flow management in Synology DiskStation Manager (DSM) before 7.0.1-42218-2 allows remote authenticated users to inject arbitrary web script or HTML via unspecified vectors.

Affected products

• Synology Diskstation Manager: from 6.2, before 6.2.4-25556-3 (fixed in 6.2.4-25556-3); from 7.0, before 7.0.1-42218-2 (fixed in 7.0.1-42218-2)

Published 2022-02-07. Last modified 2026-06-17.