# CVE-2022-42221: Command injection in n/a

> Attackers can execute arbitrary commands on Netgear R6220 routers due to incorrect access control, potentially compromising the device.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 17 Oct 2022
- **Updated:** 15 May 2025
- **Also known as:** GHSA-xpmg-m9rm-chxc

## What is CVE-2022-42221?

CVE-2022-42221 is a high-severity command injection vulnerability in Netgear R6220 Firmware, published on 17 Oct 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Netgear R6220 v1.1.0.114_1.0.1 suffers from Incorrect Access Control, resulting in a command injection vulnerability.

## Which versions are affected by CVE-2022-42221?

It affects 1 product.


Products: Netgear R6220 Firmware.

## How do I fix CVE-2022-42221?

No fix has been published for CVE-2022-42221 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-42221 being exploited?

There is no known exploitation of CVE-2022-42221 in the wild and no public exploit code.

## Other vulnerabilities in Netgear R6220 Firmware

- [CVE-2017-18739](https://insights.sbomify.com/CVE-2017-18739/): Memory corruption in n/a (high 8.8)
- [CVE-2020-26929](https://insights.sbomify.com/CVE-2020-26929/): Command injection in n/a (high 7.3)
- [CVE-2018-21164](https://insights.sbomify.com/CVE-2018-21164/): Command injection in n/a (medium 6.8)
- [CVE-2021-44261](https://insights.sbomify.com/CVE-2021-44261/): Missing authorization in n/a (medium 5.3)
- [CVE-2017-18702](https://insights.sbomify.com/CVE-2017-18702/): Misconfiguration in n/a (medium 5.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-42221 and fix it if it is affected.

What it is: CVE-2022-42221 is a high-severity command injection vulnerability in Netgear R6220 Firmware, published on 17 Oct 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2022-42221 in the wild and no public exploit code.

Affected product: Netgear R6220 Firmware. 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-2022-42221/ (Markdown: https://insights.sbomify.com/CVE-2022-42221/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-42221
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-42221
- OSV: https://osv.dev/vulnerability/CVE-2022-42221

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-42221/
Summaries are generated and may contain mistakes; the official description above is the record.