# CVE-2022-46422: Denial of service in n/a

> Authenticated attackers can cause a Denial of Service on Netgear WNR2000 routers by uploading a crafted firmware image.

- **Severity:** Medium 4.8 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H`)
- **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:** No
- **Published:** 20 Dec 2022
- **Updated:** 17 Apr 2025
- **Also known as:** GHSA-79hv-rqqf-c692

## What is CVE-2022-46422?

CVE-2022-46422 is a medium-severity denial of service vulnerability in Netgear Wnr2000 Firmware, published on 20 Dec 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

An issue in Netgear WNR2000 v1 1.2.3.7 and earlier allows authenticated attackers to cause a Denial of Service (DoS) via uploading a crafted firmware image during the firmware update process.

Weakness: CWE-345 (Insufficient Verification of Data Authenticity)

## Which versions are affected by CVE-2022-46422?

It affects 1 product.


Products: Netgear Wnr2000 Firmware.

## How do I fix CVE-2022-46422?

No fix has been published for CVE-2022-46422 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-46422 being exploited?

There is no known exploitation of CVE-2022-46422 in the wild and no public exploit code.

## Other vulnerabilities in Netgear Wnr2000 Firmware

- [CVE-2017-6862](https://insights.sbomify.com/CVE-2017-6862/): NETGEAR Multiple Devices Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2023-50089](https://insights.sbomify.com/CVE-2023-50089/): Command injection in n/a (critical 9.8)
- [CVE-2022-46423](https://insights.sbomify.com/CVE-2022-46423/): File upload in n/a (high 8.1)
- [CVE-2019-5054](https://insights.sbomify.com/CVE-2019-5054/): Null dereference in N300 WNR2000v5 (high 7.5)
- [CVE-2019-5055](https://insights.sbomify.com/CVE-2019-5055/): Null dereference in N300 WNR2000v5 (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-46422 and fix it if it is affected.

What it is: CVE-2022-46422 is a medium-severity denial of service vulnerability in Netgear Wnr2000 Firmware, published on 20 Dec 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-2022-46422 in the wild and no public exploit code.

Affected product: Netgear Wnr2000 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-2022-46422/ (Markdown: https://insights.sbomify.com/CVE-2022-46422/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-46422
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-46422
- OSV: https://osv.dev/vulnerability/CVE-2022-46422

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-46422/
Summaries are generated and may contain mistakes; the official description above is the record.