# CVE-2022-43971: Arbitrary code execution in Linksys WUMC710

> An authenticated administrator can execute arbitrary commands as root on Linksys WUMC710 devices via a malicious request to the NTP configuration endpoint.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 9 Jan 2023
- **Updated:** 9 Apr 2025
- **Also known as:** GHSA-mmc2-hxc5-9423

## What is CVE-2022-43971?

CVE-2022-43971 is a high-severity command injection vulnerability in Linksys WUMC710 Wireless-AC Universal Media Connector, published on 9 Jan 2023. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

An arbitrary code exection vulnerability exists in Linksys WUMC710 Wireless-AC Universal Media Connector with firmware <= 1.0.02 (build3). The do_setNTP function within the httpd binary uses unvalidated user input in the construction of a system command. An authenticated attacker with administrator privileges can leverage this vulnerability over the network via a malicious GET or POST request to /setNTP.cgi to execute arbitrary commands on the underlying Linux operating system as root.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2022-43971?

It affects 1 product.


Products: Linksys Wumc710 Firmware.

## How do I fix CVE-2022-43971?

No fix has been published for CVE-2022-43971 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-43971 being exploited?

There is no known exploitation of CVE-2022-43971 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-43971 and fix it if it is affected.

What it is: CVE-2022-43971 is a high-severity command injection vulnerability in Linksys WUMC710 Wireless-AC Universal Media Connector, published on 9 Jan 2023. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-43971 in the wild and no public exploit code.

Affected product: Linksys WUMC710 Wireless-AC Universal Media Connector. 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-2022-43971/ (Markdown: https://insights.sbomify.com/CVE-2022-43971/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-43971
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-43971
- OSV: https://osv.dev/vulnerability/CVE-2022-43971

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From sbomify Insights: https://insights.sbomify.com/CVE-2022-43971/
Summaries are generated and may contain mistakes; the official description above is the record.