CVE-2016-6554

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

Synology NAS servers DS107, firmware version 3.1-1639 and prior, and DS116, DS213, firmware versions prior to 5.2-5644-1, use non-random default credentials of: guest:(blank) and admin:(blank) . A remote network attacker can gain privileged access to a vulnerable device.

Metrics

CVSS 3.0 9.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-255

Affected software

Vendor	Product	Versions
Synology	NAS server DS107	>= 3.1-1639, <= 3.1-1639
Synology	NAS server DS116	>= 5.2-5644-1, < 5.2-5644-1
Synology	NAS server DS213	>= 5.2-5644-1, < 5.2-5644-1

References

https://www.kb.cert.org/vuls/id/404187Third Party Advisory, US Government Resource
https://www.securityfocus.com/bid/93805Third Party Advisory, VDB Entry
https://www.synology.com/en-global/releaseNote/DS213Release Notes, Vendor Advisory
https://www.kb.cert.org/vuls/id/404187Third Party Advisory, US Government Resource
https://www.securityfocus.com/bid/93805Third Party Advisory, VDB Entry
https://www.synology.com/en-global/releaseNote/DS213Release Notes, Vendor Advisory

Timeline

Published: Jul 13, 2018
Last modified: Jun 17, 2026
NVD status: Modified

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