# CVE-2022-36786: DLINK - DSL-224 Post-auth RCE.

> Attackers with post-authentication access can inject commands via the NTP configuration API to execute arbitrary code with root privileges on D-Link DSL-224 routers.

- **Severity:** Critical 9.9 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 17 Nov 2022
- **Updated:** 29 Apr 2025
- **Also known as:** GHSA-6x6f-2749-hhgv

## What is CVE-2022-36786?

CVE-2022-36786 is a critical command injection vulnerability in D-Link DSL-224, published on 17 Nov 2022. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

DLINK - DSL-224 Post-auth RCE.
DLINK router version 3.0.8 has an interface where you can configure NTP servers (Network Time Protocol) via jsonrpc API.
It is possible to inject a command through this interface that will run with ROOT permissions on the router.

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

## Which versions are affected by CVE-2022-36786?

It affects 1 product.


Products: Dlink Dsl-224 Firmware.

## How do I fix CVE-2022-36786?

No fix has been published for CVE-2022-36786 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-36786 being exploited?

There is no known exploitation of CVE-2022-36786 in the wild and no public exploit code.

## Other vulnerabilities in D-Link DSL-224

- [CVE-2023-32224](https://insights.sbomify.com/CVE-2023-32224/): D-Link DSL-224 firmware version 3.0.10 CWE-307: Improper Restriction of Excessive Authentication Attempts (critical 9.8)
- [CVE-2023-32223](https://insights.sbomify.com/CVE-2023-32223/): D-Link DSL-224 firmware version 3.0.10 post authentication command execution (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-36786 and fix it if it is affected.

What it is: CVE-2022-36786 is a critical command injection vulnerability in D-Link DSL-224, published on 17 Nov 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-36786 in the wild and no public exploit code.

Affected product: D-Link DSL-224. 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-2022-36786/ (Markdown: https://insights.sbomify.com/CVE-2022-36786/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-36786
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-36786
- OSV: https://osv.dev/vulnerability/CVE-2022-36786

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-36786/
Summaries are generated and may contain mistakes; the official description above is the record.