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

> Unauthenticated attackers can execute arbitrary commands via UDP keystroke injection in the default configuration, leading to full system compromise.

- **Severity:** Critical 9.3 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Jul 2025
- **Updated:** 28 Jul 2026
- **Also known as:** GHSA-v8p8-2685-3cvr

## What is CVE-2022-4978?

CVE-2022-4978 is a critical command injection vulnerability in Steppschuh Remote Control Collection Server, published on 23 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official 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.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command), CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2022-4978?


## How do I fix CVE-2022-4978?

No fix has been published for CVE-2022-4978 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-4978 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-4978 exists.

Public exploit code:

- Remote Control Collection RCE (metasploit)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-4978 and fix it if it is affected.

What it is: CVE-2022-4978 is a critical command injection vulnerability in Steppschuh Remote Control Collection Server, published on 23 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-4978 exists.

Affected product: Steppschuh Remote Control Collection Server. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2022-4978/ (Markdown: https://insights.sbomify.com/CVE-2022-4978/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-4978
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-4978
- OSV: https://osv.dev/vulnerability/CVE-2022-4978

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-4978/
Summaries are generated and may contain mistakes; the official description above is the record.