CVE-2026-34126

Setup-data interception via unencrypted Bluetooth initialization

Published May 28, 2026 · Updated May 28, 2026

Cleartext Bluetooth transmission in TP-Link Tapo L535E, P300, and D100C firmware allows physically proximate attackers to intercept setup data. During initialization, each device sends Bluetooth setup traffic without encryption, exposing the data to passive capture or in-path modification. Bluetooth must be active during initial setup and the attacker must be within radio range; successful interception permits data disclosure, setup-data manipulation, and device control during that phase.

CVSS severity7.3
High
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext Bluetooth transmission in TP-Link Tapo L535E, P300, and D100C firmware allows physically proximate attackers to intercept setup data. During initialization, each device sends Bluetooth setup traffic without encryption, exposing the data to passive capture or in-path modification. Bluetooth must be active during initial setup and the attacker must be within radio range; successful interception permits data disclosure, setup-data manipulation, and device control during that phase.

The record

CVE
CVE-2026-34126
Published
May 28, 2026
Updated
May 28, 2026
Vendor
TP-Link Systems Inc.
Product
Tapo L535E
Classifications
CWE-319, T1557, T1040
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 28, 2026CVE publishedPublication date reported by the CVE source.
  2. May 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.4.1 Build 251016 Rel.204554

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

TP-Link Systems Inc. · Tapo L535Eversion=0 <1.4.1 Build 251016 Rel.204554
TP-Link Systems Inc. · Tapo P300version=0 <EU_1.4.2 Build 251219 Rel.142654; version=0 <JP_1.4.0 Build 260416 Rel.014037
TP-Link Systems Inc. · Tapo D100Cversion=0 <1.3.1 Build 260421 Rel.031658

Published CVSS scores

7.3TP-Link Systems Inc.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
7.5NIST National Vulnerability DatabaseCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-319Cleartext Transmission of Sensitive Information
T1557Adversary-in-the-Middle
T1040Network Sniffing

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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