# CVE-2019-9835: The receiver (aka bridge) component of Fujitsu Wireless Keyboard Set LX901 GK900 devices allows Keystroke Injection.


- **Severity:** Critical 9.6 (`CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Fix available:** No
- **Published:** 15 Mar 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-q4c4-449g-h5hc

## What is CVE-2019-9835?

CVE-2019-9835 is a critical vulnerability in n/a, published on 15 Mar 2019. 

### Official description

The receiver (aka bridge) component of Fujitsu Wireless Keyboard Set LX901 GK900 devices allows Keystroke Injection. This occurs because it accepts unencrypted 2.4 GHz packets, even though all legitimate communication uses AES encryption.

## Which versions are affected by CVE-2019-9835?

It affects 2 products.


Products: Fujitsu Gk900 Firmware, Fujitsu Lx901 Firmware.

## How do I fix CVE-2019-9835?

No fix has been published for CVE-2019-9835 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-9835 being exploited?

There is no known exploitation of CVE-2019-9835 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-9835 and fix it if it is affected.

What it is: CVE-2019-9835 is a critical vulnerability in n/a, published on 15 Mar 2019. 
Exploitation: There is no known exploitation of CVE-2019-9835 in the wild and no public exploit code.

Affected product: n/a. 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-2019-9835/ (Markdown: https://insights.sbomify.com/CVE-2019-9835/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-9835
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-9835
- OSV: https://osv.dev/vulnerability/CVE-2019-9835

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-9835/
Summaries are generated and may contain mistakes; the official description above is the record.