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.
- 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
- None listed
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
Which versions are affected by CVE-2025-15551?
It affects 4 products.
Products include 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.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
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
Sources
Also known as GHSA-q6v4-fwc8-3mpc.