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

Published Feb 5, 2026
·
Updated

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.

Affected Software

12 affected components
TP-Link Archer MR200
TP-Link Archer C20
TP-Link TL-WR850N
TP-Link TL-WR845N
All of the following
TP-Link Archer Mr200 Firmware<250917
TP-Link Archer MR200=5.20
All of the following
TP-Link Archer C20 Firmware<250630
TP-Link Archer C20=6
All of the following
TP-Link Tl-wr850n Firmware<0.9.1_Build251205
TP-Link TL-WR850N=3
All of the following
TP-Link Tl-wr845n Firmware<251031
TP-Link TL-WR845N=4

Event History

Feb 5, 2026
CVE Published
via MITRE·05:22 PM
Data Sourced
via MITRE·05:22 PM
DescriptionWeakness
Data Sourced
via NVD·06:16 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-15551?

CVE-2025-15551 is considered a critical vulnerability due to the potential for remote code execution.

2

How do I fix CVE-2025-15551?

To fix CVE-2025-15551, update the firmware of affected TP-Link devices to the latest version provided by the manufacturer.

3

What devices are affected by CVE-2025-15551?

CVE-2025-15551 affects TP-Link Archer MR200, Archer C20, TL-WR850N, and TL-WR845N models.

4

What type of attack does CVE-2025-15551 enable?

CVE-2025-15551 enables attackers to perform remote code execution by exploiting the improper handling of responses in JavaScript.

5

Is CVE-2025-15551 publicly known?

Yes, CVE-2025-15551 has been publicly disclosed, increasing the risk of potential exploitation.

Contact

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