# CVE-2022-34159: Denial of service in CV81-WDM FW

> Attackers can cause service exceptions in Huawei printers due to insufficient input verification, requiring firmware updates to mitigate.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:** 20 Dec 2024
- **Updated:** 24 Dec 2024
- **Also known as:** GHSA-c3jx-62hm-38m5

## What is CVE-2022-34159?

CVE-2022-34159 is a high-severity denial of service vulnerability in Huawei CV81-WDM FW, published on 20 Dec 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Huawei printers have an input verification vulnerability. Successful exploitation of this vulnerability may cause device service exceptions. (Vulnerability ID: HWPSIRT-2022-80078)

This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2022-34159.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2022-34159?

It affects 1 product.


Products: Huawei Cv81-Wdm Firmware.

## How do I fix CVE-2022-34159?

No fix has been published for CVE-2022-34159 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-34159 being exploited?

There is no known exploitation of CVE-2022-34159 in the wild and no public exploit code.

## Other vulnerabilities in Huawei CV81-WDM FW

- [CVE-2022-32203](https://insights.sbomify.com/CVE-2022-32203/): Command injection in CV81-WDM FW (critical 9.8)
- [CVE-2022-29797](https://insights.sbomify.com/CVE-2022-29797/): Memory corruption in CV81-WDM FW (critical 9.8)
- [CVE-2022-32144](https://insights.sbomify.com/CVE-2022-32144/): Other in CV81-WDM FW (high 8.6)
- [CVE-2022-32204](https://insights.sbomify.com/CVE-2022-32204/): Denial of service in CV81-WDM FW (high 7.5)
- [CVE-2022-29798](https://insights.sbomify.com/CVE-2022-29798/): Denial of service in CV81-WDM FW (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-34159 and fix it if it is affected.

What it is: CVE-2022-34159 is a high-severity denial of service vulnerability in Huawei CV81-WDM FW, published on 20 Dec 2024. 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-2022-34159 in the wild and no public exploit code.

Affected product: Huawei CV81-WDM FW. 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-2022-34159/ (Markdown: https://insights.sbomify.com/CVE-2022-34159/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-34159
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-34159
- OSV: https://osv.dev/vulnerability/CVE-2022-34159

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From sbomify Insights: https://insights.sbomify.com/CVE-2022-34159/
Summaries are generated and may contain mistakes; the official description above is the record.