# CVE-2023-42664: Command injection in ER7206 Omada Gigabit VPN Router

> Authenticated attackers can inject arbitrary commands via crafted HTTP requests in the PPTP configuration of Tp-Link ER7206 routers.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/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:** 6 Feb 2024
- **Updated:** 4 Nov 2025
- **Also known as:** GHSA-vmmp-h76c-g65f

## What is CVE-2023-42664?

CVE-2023-42664 is a high-severity command injection vulnerability in Tp-Link ER7206 Omada Gigabit VPN Router, published on 6 Feb 2024. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A post authentication command injection vulnerability exists when setting up the PPTP global configuration of Tp-Link ER7206 Omada Gigabit VPN Router 1.3.0 build 20230322 Rel.70591. A specially crafted HTTP request can lead to arbitrary command injection. An attacker can make an authenticated HTTP request to trigger this vulnerability.

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

## Which versions are affected by CVE-2023-42664?

It affects 1 product.


Products: Tp-Link Er7206 Firmware.

## How do I fix CVE-2023-42664?

No fix has been published for CVE-2023-42664 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-42664 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-42664 exists.

## Other vulnerabilities in Tp-Link ER7206 Omada Gigabit VPN Router

- [CVE-2024-21827](https://insights.sbomify.com/CVE-2024-21827/): Command injection in ER7206 Omada Gigabit VPN Router (high 7.2)
- [CVE-2023-36498](https://insights.sbomify.com/CVE-2023-36498/): Command injection in ER7206 Omada Gigabit VPN Router (high 7.2)
- [CVE-2023-43482](https://insights.sbomify.com/CVE-2023-43482/): Command injection in ER7206 Omada Gigabit VPN Router (high 7.2)
- [CVE-2023-46683](https://insights.sbomify.com/CVE-2023-46683/): Command injection in ER7206 Omada Gigabit VPN Router (high 7.2)
- [CVE-2023-47167](https://insights.sbomify.com/CVE-2023-47167/): Command injection in ER7206 Omada Gigabit VPN Router (high 7.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-42664 and fix it if it is affected.

What it is: CVE-2023-42664 is a high-severity command injection vulnerability in Tp-Link ER7206 Omada Gigabit VPN Router, published on 6 Feb 2024. 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-2023-42664 exists.

Affected product: Tp-Link ER7206 Omada Gigabit VPN Router. 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-2023-42664/ (Markdown: https://insights.sbomify.com/CVE-2023-42664/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-42664
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-42664
- OSV: https://osv.dev/vulnerability/CVE-2023-42664

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-42664/
Summaries are generated and may contain mistakes; the official description above is the record.