# CVE-2022-39282: RDP client: Read of uninitialized memory with parallel port redirection

> Attackers can read uninitialized memory from FreeRDP clients using parallel port redirection, potentially exposing sensitive data to the server.

- **Severity:** Low 3.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 12 Oct 2022
- **Updated:** 3 Nov 2025
- **Also known as:** DEBIAN-CVE-2022-39282, GHSA-c45q-wcpg-mxjq, UBUNTU-CVE-2022-39282

## What is CVE-2022-39282?

CVE-2022-39282 is a low-severity vulnerability in Fedoraproject Fedora, published on 12 Oct 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

FreeRDP is a free remote desktop protocol library and clients. FreeRDP based clients on unix systems using `/parallel` command line switch might read uninitialized data and send it to the server the client is currently connected to. FreeRDP based server implementations are not affected. Please upgrade to 2.8.1 where this issue is patched. If unable to upgrade, do not use parallel port redirection (`/parallel` command line switch) as a workaround.

Weakness: CWE-908 (Use of Uninitialized Resource)

## Which versions are affected by CVE-2022-39282?

It affects 2 products.


Products: Fedoraproject Fedora, Freerdp Freerdp.

## How do I fix CVE-2022-39282?

Upgrade to a fixed version.

## Is CVE-2022-39282 being exploited?

There is no known exploitation of CVE-2022-39282 in the wild and no public exploit code.

## Other vulnerabilities in Fedoraproject Fedora

- [CVE-2024-4577](https://insights.sbomify.com/CVE-2024-4577/): PHP-CGI OS Command Injection (critical 9.8, exploited in the wild)
- [CVE-2021-39226](https://insights.sbomify.com/CVE-2021-39226/): Grafana Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2019-5544](https://insights.sbomify.com/CVE-2019-5544/): VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2024-4947](https://insights.sbomify.com/CVE-2024-4947/): Google Chromium V8 Type Confusion (critical 9.6, exploited in the wild)
- [CVE-2024-4671](https://insights.sbomify.com/CVE-2024-4671/): Google Chromium Visuals Use-After-Free (critical 9.6, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-39282 and fix it if it is affected.

What it is: CVE-2022-39282 is a low-severity vulnerability in Fedoraproject Fedora, published on 12 Oct 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2022-39282 in the wild and no public exploit code.

Affected product: Fedoraproject Fedora. 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-2022-39282/ (Markdown: https://insights.sbomify.com/CVE-2022-39282/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-39282
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-39282
- OSV: https://osv.dev/vulnerability/CVE-2022-39282

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-39282/
Summaries are generated and may contain mistakes; the official description above is the record.