CVE-2026-30704: Critical severity TP-Link WiFi Extender WDR201A vulnerability

Published Mar 18, 2026
·
Updated

The WiFi Extender WDR201A (HW V2.1, FW LFMZX28040922V1.02) exposes an unprotected UART interface through accessible hardware pads on the PCB

Affected Software

1 affected component
TP-Link WiFi Extender WDR201A

Event History

Mar 18, 2026
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·06:16 PM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2026-30704?

CVE-2026-30704 is considered a high severity vulnerability due to its potential for unauthorized access through an unprotected UART interface.

2

How do I fix CVE-2026-30704?

To mitigate CVE-2026-30704, secure the UART interface by disabling it or restricting access to authorized personnel only.

3

What are the potential risks of CVE-2026-30704?

CVE-2026-30704 could allow attackers to gain low-level access to the device, potentially leading to further exploitation or data breaches.

4

Who is affected by CVE-2026-30704?

The vulnerability affects users of the TP-Link WiFi Extender WDR201A, specifically hardware version V2.1 with firmware LFMZX28040922V1.02.

5

Is there a patch available for CVE-2026-30704?

As of now, there is no official patch released for CVE-2026-30704, so manual mitigation steps are recommended.

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