# CVE-2022-21217: Memory corruption in n/a

> An attacker can trigger an out-of-bounds write in the Reolink camera's email test feature via a crafted HTTP request, potentially leading to code execution.

- **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-v36c-pq4h-93xc

## What is CVE-2022-21217?

CVE-2022-21217 is a critical memory corruption 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 out-of-bounds write vulnerability exists in the device TestEmail functionality of reolink RLC-410W v3.0.0.136_20121102. A specially-crafted network request can lead to an out-of-bounds write. An attacker can send an HTTP request to trigger this vulnerability.

Weakness: CWE-787 (Out-of-bounds Write), CWE-457 (Use of Uninitialized Variable)

## Which versions are affected by CVE-2022-21217?

It affects 1 product.


Products: Reolink Rlc-410w Firmware.

## How do I fix CVE-2022-21217?

No fix has been published for CVE-2022-21217 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-21217 being exploited?

There is no known exploitation of CVE-2022-21217 in the wild and no public exploit code.

## 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-2022-21217 and fix it if it is affected.

What it is: CVE-2022-21217 is a critical memory corruption 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: There is no known exploitation of CVE-2022-21217 in the wild and no public exploit code.

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-2022-21217/ (Markdown: https://insights.sbomify.com/CVE-2022-21217/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-21217
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-21217
- OSV: https://osv.dev/vulnerability/CVE-2022-21217

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-21217/
Summaries are generated and may contain mistakes; the official description above is the record.