Bluetooth Communication Uses Unencrypted Transmission During Initial Setup on TP-Link's Tapo L535E, P300 and D100C

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Summary

CVECVE-2026-34126
StatePUBLISHED
AssignerTPLink
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-28 18:16:31 UTC
Updated2026-06-03 18:18:02 UTC
DescriptionTP-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

Risk And Classification

Primary CVSS: v4.0 7.3 HIGH from f23511db-6c3e-4e32-a477-6aa17d310630

CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.000070000 probability, percentile 0.005150000 (date 2026-06-03)

Problem Types: CWE-319 | CWE-319 CWE-319 Cleartext transmission of sensitive information

VersionSourceTypeScoreSeverityVector
4.0f23511db-6c3e-4e32-a477-6aa17d310630Secondary7.3HIGHCVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS7.3HIGHCVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
3.1[email protected]Primary7.5HIGHCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v4.0 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
None
User Interaction
Active
Confidentiality
High
Integrity
High
Availability
Low
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Tp-link Tapo D100c 1.0 All All All
Operating System Tp-link Tapo D100c Firmware 1.3.1 All All All
Hardware Tp-link Tapo L535e 1.0 All All All
Hardware Tp-link Tapo L535e 3.0 All All All
Operating System Tp-link Tapo L535e Firmware 1.4.1 All All All
Hardware Tp-link Tapo P300 1.0 All All All
Operating System Tp-link Tapo P300 Firmware 1.4.0 All All All
Operating System Tp-link Tapo P300 Firmware 1.4.2 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA TP-Link Systems Inc. Tapo L535E V1.0 V3.0 affected 1.4.1 Build 251016 Rel.204554 custom RTOS
CNA TP-Link Systems Inc. Tapo P300 V1.0 affected EU_1.4.2 Build 251219 Rel.142654 custom RTOS
CNA TP-Link Systems Inc. Tapo P300 V1.0 affected JP_1.4.0 Build 260416 Rel.014037 custom RTOS
CNA TP Link Systems Inc. Tapo D100C V1.0 affected 1.3.1 Build 260421 Rel.031658 custom RTOS

References

ReferenceSourceLinkTags
www.tp-link.com/us/support/download/tapo-l535e f23511db-6c3e-4e32-a477-6aa17d310630 www.tp-link.com Release Notes
www.tp-link.com/us/support/faq/5106 f23511db-6c3e-4e32-a477-6aa17d310630 www.tp-link.com Vendor Advisory
www.tp-link.com/en/support/download/tapo-l535e/v3 f23511db-6c3e-4e32-a477-6aa17d310630 www.tp-link.com Release Notes
www.tp-link.com/jp/support/download/tapo-l535e f23511db-6c3e-4e32-a477-6aa17d310630 www.tp-link.com Release Notes
www.tp-link.com/jp/support/download/tapo-p300 f23511db-6c3e-4e32-a477-6aa17d310630 www.tp-link.com Release Notes
www.tp-link.com/en/support/download/tapo-p300 f23511db-6c3e-4e32-a477-6aa17d310630 www.tp-link.com Release Notes
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: eyegrep and izurina from L Plus LLC (en)

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