CVE-2016-6554 json
Synology NAS servers DS107, DS116, and DS213, use default credentials
published 2018-07-13 8 y ago modified 2026-06-17 4 mo ago also EUVD-2016-7475
- cvss
- 9.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.1%
- EPSS 4.1% chance of exploitation in 30 days, percentile 90%
- public exploits
- 0
- none known
Summary
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.
Exploit prediction
4.08% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Affected products
- Synology NAS server DS107
- Synology NAS server DS116
- Synology NAS server DS213
Classification
- Weakness
-
- CWE-255 Credentials Management Errors
References
-
synology.com
/en-global/releaseNote/DS213
release-notes, vendor-advisory
-
securityfocus.com
/bid/93805
vdb-entry, third-party-advisory
-
kb.cert.org
/vuls/id/404187
third-party-advisory, us-government-resource
Sources
- CVE List CVE-2016-6554
- NVD CVE-2016-6554
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.