# CVE-2021-40412: Command injection in n/a

> Attackers can execute arbitrary OS commands via the SetDevName API due to improper validation of the device name parameter.

- **Severity:** Critical 9.1 (`CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/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:** 28 Jan 2022
- **Updated:** 15 Apr 2025
- **Also known as:** GHSA-8hcx-pw9g-w24x

## What is CVE-2021-40412?

CVE-2021-40412 is a critical command injection vulnerability in Reolink Rlc-410w Firmware, published on 28 Jan 2022. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

An OScommand injection vulnerability exists in the device network settings functionality of reolink RLC-410W v3.0.0.136_20121102. At [8] the devname variable, that has the value of the name parameter provided through the SetDevName API, is not validated properly. This would lead to an OS command injection.

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

## Which versions are affected by CVE-2021-40412?

It affects 1 product.


Products: Reolink Rlc-410w Firmware.

## How do I fix CVE-2021-40412?

No fix has been published for CVE-2021-40412 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-40412 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-40412 exists.

## Other vulnerabilities in Reolink Rlc-410w Firmware

- [CVE-2021-40407](https://insights.sbomify.com/CVE-2021-40407/): Reolink RLC-410W IP Camera OS Command Injection Vulnerability (critical 9.1, exploited in the wild)
- [CVE-2021-40419](https://insights.sbomify.com/CVE-2021-40419/): Other in n/a (critical 10.0)
- [CVE-2022-21796](https://insights.sbomify.com/CVE-2022-21796/): Memory corruption in n/a (critical 9.3)
- [CVE-2021-40408](https://insights.sbomify.com/CVE-2021-40408/): Command injection in n/a (critical 9.1)
- [CVE-2021-40409](https://insights.sbomify.com/CVE-2021-40409/): Command injection in n/a (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-40412 and fix it if it is affected.

What it is: CVE-2021-40412 is a critical command injection vulnerability in Reolink Rlc-410w Firmware, published on 28 Jan 2022. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-40412 exists.

Affected product: Reolink Rlc-410w Firmware. 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-2021-40412/ (Markdown: https://insights.sbomify.com/CVE-2021-40412/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-40412
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-40412
- OSV: https://osv.dev/vulnerability/CVE-2021-40412

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-40412/
Summaries are generated and may contain mistakes; the official description above is the record.