# CVE-2023-36498: Command injection in ER7206 Omada Gigabit VPN Router

> Authenticated attackers can inject arbitrary commands via HTTP requests to gain unrestricted shell access on 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-mj59-82hp-pgf4

## What is CVE-2023-36498?

CVE-2023-36498 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 in the PPTP client functionality 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 and gain access to an unrestricted shell.

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

## Which versions are affected by CVE-2023-36498?

It affects 1 product.


Products: Tp-Link Er7206 Firmware.

## How do I fix CVE-2023-36498?

No fix has been published for CVE-2023-36498 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-36498 being exploited?

There is no known exploitation of CVE-2023-36498 in the wild and no public exploit code.

## 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-2023-42664](https://insights.sbomify.com/CVE-2023-42664/): 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-2023-36498 and fix it if it is affected.

What it is: CVE-2023-36498 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: There is no known exploitation of CVE-2023-36498 in the wild and no public exploit code.

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-2023-36498/ (Markdown: https://insights.sbomify.com/CVE-2023-36498/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-36498
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-36498
- OSV: https://osv.dev/vulnerability/CVE-2023-36498

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-36498/
Summaries are generated and may contain mistakes; the official description above is the record.