# CVE-2021-40043: Command injection in AIS-BW80H-00

> Attackers can execute voice commands on Huawei AIS devices via laser injection if the device is visually accessible, requiring a firmware upgrade.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/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:** 25 Feb 2022
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-g75c-h8jr-44x6

## What is CVE-2021-40043?

CVE-2021-40043 is a high-severity command injection vulnerability in AIS-BW80H-00, published on 25 Feb 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

The laser command injection vulnerability exists on AIS-BW80H-00 versions earlier than AIS-BW80H-00 9.0.3.4(H100SP13C00). The devices cannot effectively defend against external malicious interference. Attackers need the device to be visually exploitable and successful triggering of this vulnerability could execute voice commands on the device.

Weakness: CWE-77 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2021-40043?

It affects 1 product.


Products: Huawei Ais-Bw80h-00 Firmware.

## How do I fix CVE-2021-40043?

No fix has been published for CVE-2021-40043 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-40043 being exploited?

There is no known exploitation of CVE-2021-40043 in the wild and no public exploit code.

## Other vulnerabilities in AIS-BW80H-00

- [CVE-2020-9118](https://insights.sbomify.com/CVE-2020-9118/): Security feature bypass in AIS-BW80H-00 (medium 6.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-40043 and fix it if it is affected.

What it is: CVE-2021-40043 is a high-severity command injection vulnerability in AIS-BW80H-00, published on 25 Feb 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-2021-40043 in the wild and no public exploit code.

Affected product: AIS-BW80H-00. 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-2021-40043/ (Markdown: https://insights.sbomify.com/CVE-2021-40043/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-40043
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-40043
- OSV: https://osv.dev/vulnerability/CVE-2021-40043

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-40043/
Summaries are generated and may contain mistakes; the official description above is the record.