# CVE-2025-15551: LAN Code Execution on TP-Link Archer MR200, Archer C20, TL-WR850N and TL-WR845N

> Attackers can execute arbitrary JavaScript on TP-Link router admin portals via Man-in-the-Middle attacks due to unsafe eval usage.

- **Severity:** Medium 5.9 (`CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 5 Feb 2026
- **Updated:** 22 Apr 2026
- **Also known as:** GHSA-q6v4-fwc8-3mpc

## What is CVE-2025-15551?

CVE-2025-15551 is a medium-severity code injection vulnerability in TP Link Systems Inc. Archer C20 v5, published on 5 Feb 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

The response coming from TP-Link Archer MR200 v5.2, C20 v5 and v6, TL-WR850N v3, and TL-WR845N v4 for any request is getting executed by the JavaScript function like eval directly without any check. Attackers can exploit this vulnerability via a Man-in-the-Middle (MitM) attack to execute JavaScript code on the router's admin web portal without the user's permission or knowledge.

Weakness: CWE-95 (Improper Neutralization of Directives in Dynamically Evaluated Code)

## Which versions are affected by CVE-2025-15551?

It affects 4 products.


Products: Tp-Link Archer C20 Firmware, Tp-Link Archer Mr200 Firmware, Tp-Link Tl-Wr845n Firmware, Tp-Link Tl-Wr850n Firmware.

## How do I fix CVE-2025-15551?

No fix has been published for CVE-2025-15551 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-15551 being exploited?

There is no known exploitation of CVE-2025-15551 in the wild and no public exploit code.

## Other vulnerabilities in TP Link Systems Inc. Archer C20 v5

- [CVE-2023-37284](https://insights.sbomify.com/CVE-2023-37284/): Auth bypass in Archer C20 (high 8.8)
- [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)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-15551 and fix it if it is affected.

What it is: CVE-2025-15551 is a medium-severity code injection vulnerability in TP Link Systems Inc. Archer C20 v5, published on 5 Feb 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2025-15551 in the wild and no public exploit code.

Affected product: TP Link Systems Inc. Archer C20 v5. 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-2025-15551/ (Markdown: https://insights.sbomify.com/CVE-2025-15551/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-15551
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-15551
- OSV: https://osv.dev/vulnerability/CVE-2025-15551

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-15551/
Summaries are generated and may contain mistakes; the official description above is the record.