Synology DiskStation Manager: Mehrere Schwachstellen
WID-SEC-2026-3463 · first 18.09.2026 · updated 18.09.2026 · CVSS 9,8
What it is about
DiskStation Manager (DSM) ist ein webbasiertes Betriebssystem für Synology NAS-Geräte. Ein Angreifer kann mehrere Schwachstellen in Synology DiskStation Manager ausnutzen, um Dateien zu manipulieren, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um einen Cross-Site Scripting Angriff durchzuführen und um einen SQL-Injection Angriff durchzuführen.
Under what conditions?
The BSI does not name any particular preconditions. Exploitable remotely according to the BSI.
What can happen in the worst case
An attacker could use the vulnerability to
- Dateien zu manipulieren
- einen Denial of Service Angriff durchzuführen
- Informationen offenzulegen
- einen Cross-Site Scripting Angriff durchzuführen
- einen SQL-Injection Angriff durchzuführen
Am I affected?
Affected according to the BSI:
- Synology DiskStation Manager <7.4-90075
- Synology DiskStation Manager <7.3.2-86009-4
- Synology DiskStation Manager <7.2.2-72806-9
- Synology DiskStation Manager <7.2.1-69057-12
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Synology DiskStation Manager 7.4-90075
- Synology DiskStation Manager 7.3.2-86009-4
- Synology DiskStation Manager 7.2.2-72806-9
- Synology DiskStation Manager 7.2.1-69057-12
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- Synology Security Advisory vom 2026-09-17 www.synology.com
CVE: CVE-2026-13623, CVE-2026-13635, CVE-2026-13639, CVE-2026-13666, CVE-2026-13673, CVE-2026-13683, CVE-2026-13684, CVE-2026-6205
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.