TP-Link Tapo L535E/Tapo P300/Tapo D100C Bluetooth cleartext transmission

Summaryinfo

A vulnerability, which was classified as problematic, was found in TP-Link Tapo L535E, Tapo P300 and Tapo D100C. This affects an unknown part of the component Bluetooth. Such manipulation leads to cleartext transmission. This vulnerability is referenced as CVE-2026-34126. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in TP-Link Tapo L535E, Tapo P300 and Tapo D100C (affected version not known). It has been rated as problematic. Affected by this issue is some unknown functionality of the component Bluetooth. The manipulation with an unknown input leads to a cleartext transmission vulnerability. Using CWE to declare the problem leads to CWE-319. The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors. Impacted is confidentiality. CVE summarizes:

TP-Link has identified a vulnerability in Tapo L535E v1.0 and v3.0, Tapo P300 v1.0, and Tapo D100C v1.0, where Bluetooth communication during the initial setup phase is transmitted in cleartext without encryption. Bluetooth is only used during initialization. An attacker within the Bluetooth range could exploit this behavior using Bluetooth sniffing or man-in-the-middle techniques, which may allow eavesdropping on Bluetooth communication, manipulate transmitted setup data and potentially gain unauthorized control of the device during initialization.  An attacker within the Bluetooth range could exploit this behavior using Bluetooth sniffing or man-in-the-middle techniques, which may allow eavesdropping on Bluetooth communication, manipulate transmitted setup data and potentially gain unauthorized control of the device during initialization. D100C is the chime delivered with your Tapo camera, and it is delivered with the following Tapo products: D130, D210, D235, D225, TD21, TDB21 and TD25

The weakness was published by Eyegrep and Izurina. The advisory is available at tp-link.com. This vulnerability is handled as CVE-2026-34126 since 03/25/2026. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1040 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• TP-Link

Name

• Tapo D100C
• Tapo L535E
• Tapo P300

License

• commercial

Website

• Vendor: https://www.tp-link.com/

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