# CVE-2022-2044: MOXA NPort 5110 Out-of-bounds Write

> An out-of-bounds write in MOXA NPort 5110 allows attackers to cause denial of service or brick the device.

- **Severity:** High 8.2 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 31 Aug 2022
- **Updated:** 16 Apr 2025
- **Also known as:** GHSA-v9vv-7w2w-4qp5

## What is CVE-2022-2044?

CVE-2022-2044 is a high-severity memory corruption vulnerability in MOXA, published on 31 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

MOXA NPort 5110: Firmware Versions 2.10 is vulnerable to an out-of-bounds write that may allow an attacker to overwrite values in memory, causing a denial-of-service condition or potentially bricking the device.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2022-2044?

It affects 1 product.


Products: Moxa Nport 5110 Firmware.

## How do I fix CVE-2022-2044?

No fix has been published for CVE-2022-2044 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-2044 being exploited?

There is no known exploitation of CVE-2022-2044 in the wild and no public exploit code.

## Other vulnerabilities in MOXA

- [CVE-2017-16715](https://insights.sbomify.com/CVE-2017-16715/): Information disclosure in Moxa NPort 5110, 5130, and 5150 (high 8.6)
- [CVE-2022-2043](https://insights.sbomify.com/CVE-2022-2043/): MOXA NPort 5110 Out-of-bounds Write (high 7.5)
- [CVE-2017-14028](https://insights.sbomify.com/CVE-2017-14028/): Denial of service in Moxa NPort 5110, 5130, and 5150 (high 7.5)
- [CVE-2017-16719](https://insights.sbomify.com/CVE-2017-16719/): Other in Moxa NPort 5110, 5130, and 5150 (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-2044 and fix it if it is affected.

What it is: CVE-2022-2044 is a high-severity memory corruption vulnerability in MOXA, published on 31 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-2044 in the wild and no public exploit code.

Affected product: MOXA. 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-2022-2044/ (Markdown: https://insights.sbomify.com/CVE-2022-2044/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-2044
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-2044
- OSV: https://osv.dev/vulnerability/CVE-2022-2044

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-2044/
Summaries are generated and may contain mistakes; the official description above is the record.