# CVE-2021-45531: Command injection in n/a

> An authenticated user can execute arbitrary commands on NETGEAR D6220 devices via a command injection vulnerability.

- **Severity:** High 7.1 (`CVSS:3.1/AC:H/AV:N/A:L/C:H/I:H/PR:L/S:U/UI:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 26 Dec 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-8jx3-84v7-hf92

## What is CVE-2021-45531?

CVE-2021-45531 is a high-severity command injection vulnerability in Netgear D6220 Firmware, published on 26 Dec 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

NETGEAR D6220 devices before 1.0.0.76 are affected by command injection by an authenticated user.

Weakness: CWE-77 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2021-45531?

It affects 1 product.


Products: Netgear D6220 Firmware.

## How do I fix CVE-2021-45531?

No fix has been published for CVE-2021-45531 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-45531 being exploited?

There is no known exploitation of CVE-2021-45531 in the wild and no public exploit code.

## Other vulnerabilities in Netgear D6220 Firmware

- [CVE-2016-6277](https://insights.sbomify.com/CVE-2016-6277/): NETGEAR Multiple Routers Remote Code Execution (high 8.8, exploited in the wild)
- [CVE-2021-45527](https://insights.sbomify.com/CVE-2021-45527/): Memory corruption in n/a (critical 9.6)
- [CVE-2021-45610](https://insights.sbomify.com/CVE-2021-45610/): Memory corruption in n/a (critical 9.6)
- [CVE-2021-45638](https://insights.sbomify.com/CVE-2021-45638/): Memory corruption in n/a (critical 9.6)
- [CVE-2021-34982](https://insights.sbomify.com/CVE-2021-34982/): NETGEAR Multiple Routers httpd Stack-based Buffer Overflow Remote Code Execution Vulnerability (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-45531 and fix it if it is affected.

What it is: CVE-2021-45531 is a high-severity command injection vulnerability in Netgear D6220 Firmware, published on 26 Dec 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-45531 in the wild and no public exploit code.

Affected product: Netgear D6220 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-2021-45531/ (Markdown: https://insights.sbomify.com/CVE-2021-45531/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-45531
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-45531
- OSV: https://osv.dev/vulnerability/CVE-2021-45531

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-45531/
Summaries are generated and may contain mistakes; the official description above is the record.