# CVE-2023-37284: Auth bypass in Archer C20

> A network-adjacent attacker can bypass authentication and execute arbitrary OS commands on TP-Link Archer C20 routers.

- **Severity:** High 8.8 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Sep 2023
- **Updated:** 26 Sep 2024
- **Also known as:** GHSA-q6vv-hfwj-rw6g

## What is CVE-2023-37284?

CVE-2023-37284 is a high-severity authentication bypass vulnerability in TP-LINK Archer C20, published on 6 Sep 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Improper authentication vulnerability in Archer C20 firmware versions prior to 'Archer C20(JP)_V1_230616' allows a network-adjacent unauthenticated attacker to execute an arbitrary OS command via a crafted request to bypass authentication.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2023-37284?

It affects 1 product.


Products: Tp-Link Archer C20 Firmware.

## How do I fix CVE-2023-37284?

No fix has been published for CVE-2023-37284 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-37284 being exploited?

There is no known exploitation of CVE-2023-37284 in the wild and no public exploit code.

## Other vulnerabilities in TP-LINK Archer C20

- [CVE-2026-75616](https://insights.sbomify.com/CVE-2026-75616/): Command Injection in Router Web Management Interface (high 8.5)
- [CVE-2023-30383](https://insights.sbomify.com/CVE-2023-30383/): Memory corruption in n/a (high 7.5)
- [CVE-2025-15551](https://insights.sbomify.com/CVE-2025-15551/): LAN Code Execution on TP-Link Archer MR200, Archer C20, TL-WR850N and TL-WR845N (medium 5.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-37284 and fix it if it is affected.

What it is: CVE-2023-37284 is a high-severity authentication bypass vulnerability in TP-LINK Archer C20, published on 6 Sep 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-37284 in the wild and no public exploit code.

Affected product: TP-LINK Archer C20. 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-2023-37284/ (Markdown: https://insights.sbomify.com/CVE-2023-37284/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-37284
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-37284
- OSV: https://osv.dev/vulnerability/CVE-2023-37284

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-37284/
Summaries are generated and may contain mistakes; the official description above is the record.