# CVE-2022-43443: Command injection in WCR-1166DS

> A network-adjacent attacker can execute arbitrary OS commands on Buffalo routers via a crafted request to the management page.

- **Severity:** High 8.0 (`CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 19 Dec 2022
- **Updated:** 17 Apr 2025
- **Also known as:** GHSA-242r-mxxc-q586

## What is CVE-2022-43443?

CVE-2022-43443 is a high-severity command injection vulnerability in BUFFALO INC. WCR-1166DS, published on 19 Dec 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

OS command injection vulnerability in Buffalo network devices allows an network-adjacent attacker to execute an arbitrary OS command if a specially crafted request is sent to the management page.

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

## Which versions are affected by CVE-2022-43443?

It affects 11 products.


Products: Buffalo Wcr-1166ds Firmware, Buffalo Wsr-2533dhp2 Firmware, Buffalo Wsr-2533dhp3 Firmware, Buffalo Wsr-2533dhp Firmware, Buffalo Wsr-2533dhpl2 Firmware, Buffalo Wsr-2533dhpl Firmware, Buffalo Wsr-2533dhpls Firmware, Buffalo Wsr-3200ax4b Firmware, Buffalo Wsr-3200ax4s Firmware, Buffalo Wsr-A2533dhp2 Firmware, Buffalo Wsr-A2533dhp3 Firmware.

## How do I fix CVE-2022-43443?

No fix has been published for CVE-2022-43443 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-43443 being exploited?

There is no known exploitation of CVE-2022-43443 in the wild and no public exploit code.

## Other vulnerabilities in BUFFALO INC. WCR-1166DS

- [CVE-2022-43486](https://insights.sbomify.com/CVE-2022-43486/): Command injection in WCR-1166DS (medium 6.8)
- [CVE-2017-10811](https://insights.sbomify.com/CVE-2017-10811/): Command injection in WCR-1166DS (medium 6.8)
- [CVE-2024-26023](https://insights.sbomify.com/CVE-2024-26023/): Command injection in WCR-1166DS (medium 4.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-43443 and fix it if it is affected.

What it is: CVE-2022-43443 is a high-severity command injection vulnerability in BUFFALO INC. WCR-1166DS, published on 19 Dec 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-43443 in the wild and no public exploit code.

Affected product: BUFFALO INC. WCR-1166DS. 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-2022-43443/ (Markdown: https://insights.sbomify.com/CVE-2022-43443/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-43443
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-43443
- OSV: https://osv.dev/vulnerability/CVE-2022-43443

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-43443/
Summaries are generated and may contain mistakes; the official description above is the record.