# CVE-2022-40224: Denial of service in SDS-3008 Series Industrial Ethernet Switch

> An attacker can cause a denial of service on Moxa industrial switches by sending a specially crafted HTTP message header.

- **Severity:** Medium 5.3 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 7 Feb 2023
- **Updated:** 5 Mar 2025
- **Also known as:** GHSA-96vh-xrjg-62gv

## What is CVE-2022-40224?

CVE-2022-40224 is a medium-severity denial of service vulnerability in Moxa SDS-3008 Series Industrial Ethernet Switch, published on 7 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A denial of service vulnerability exists in the web server functionality of Moxa SDS-3008 Series Industrial Ethernet Switch 2.1. A specially-crafted HTTP message header can lead to denial of service. An attacker can send an HTTP request to trigger this vulnerability.

Weakness: CWE-410 (Insufficient Resource Pool)

## Which versions are affected by CVE-2022-40224?

It affects 2 products.


Products: Moxa Sds-3008-T Firmware, Moxa Sds-3008 Firmware.

## How do I fix CVE-2022-40224?

No fix has been published for CVE-2022-40224 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-40224 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-40224 exists.

## Other vulnerabilities in Moxa SDS-3008 Series Industrial Ethernet Switch

- [CVE-2022-40693](https://insights.sbomify.com/CVE-2022-40693/): Information disclosure in SDS-3008 Series Industrial Ethernet Switch (medium 5.9)
- [CVE-2022-40691](https://insights.sbomify.com/CVE-2022-40691/): Information disclosure in SDS-3008 Series Industrial Ethernet Switch (medium 5.3)
- [CVE-2022-41311](https://insights.sbomify.com/CVE-2022-41311/): Cross-site scripting in SDS-3008 Series Industrial Ethernet Switch (medium 4.3)
- [CVE-2022-41312](https://insights.sbomify.com/CVE-2022-41312/): Cross-site scripting in SDS-3008 Series Industrial Ethernet Switch (medium 4.3)
- [CVE-2022-41313](https://insights.sbomify.com/CVE-2022-41313/): Cross-site scripting in SDS-3008 Series Industrial Ethernet Switch (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-40224 and fix it if it is affected.

What it is: CVE-2022-40224 is a medium-severity denial of service vulnerability in Moxa SDS-3008 Series Industrial Ethernet Switch, published on 7 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-40224 exists.

Affected product: Moxa SDS-3008 Series Industrial Ethernet Switch. 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-2022-40224/ (Markdown: https://insights.sbomify.com/CVE-2022-40224/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-40224
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-40224
- OSV: https://osv.dev/vulnerability/CVE-2022-40224

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-40224/
Summaries are generated and may contain mistakes; the official description above is the record.