Vulnerability Intelligence Report

Improper Authentication and Credential Exposure in Multiple TP-Link Kasa Devices

CVE-2026-108473

Multiple Kasa devices contain an improper authentication vulnerability in the local device-management protocol. An unauthenticated adjacent attacker may send management instructions to an affected device without adequate authentication or authorization, allowing modification of the device state or management settings. Under certain usage conditions involving interaction between the user, mobile application, and device-cloud service, insufficient protection of account-related communications may also expose account information. Successful exploitation may allow an unauthenticated adjacent-network attacker to perform unauthorized device-management actions and disrupt legitimate user control. Under certain conditions, account-related information may also be exposed, potentially leading to compromise of the associated cloud account.

No Active Exploit Signals

CVSS Base Score

8.7

HIGH

Executive Threat Verdict

Evaluating...

Evaluating Threat Landscape...

Assessing known weaponization, exploitation telemetry, and federal advisories.

Attack Surface

—

Authentication

—

Weaponization

—

SSVC Action

—

Weaknesses (CWE)

CWE-306 ↗CWE-306 Missing authentication for critical function

Affected Products & Versions

Vendor	Product	Affected Versions
TP-Link Systems Inc.	HS103 v5	0 < 1.1.3 Build 250908 Rel.112508 (affected)
TP-Link Systems Inc.	EP10 v1	0 < 1.1.1 Build 250908 Rel.112508 (affected)
TP-Link Systems Inc.	EP40 v1	0 < 1.1.0 Build 250225 Rel.171723 (affected)
TP-Link Systems Inc.	HS200 v5	0 < 1.1.2 Build 241220 Rel.165559 (affected)
TP-Link Systems Inc.	KP401 v1	0 < 1.1.2 Build 241223 Rel.094434 (affected)
TP-Link Systems Inc.	KS230 KIT v2	0 < 1.1.4 Build 241223 Rel.105830 (affected)
TP-Link Systems Inc.	KP405 v1	0 < 1.1.0 Build 250225 Rel.174632 (affected)
TP-Link Systems Inc.	HS220 v3	0 < 1.1.4 Build 241220 Rel.171050 (affected)
TP-Link Systems Inc.	KP115 v1	0 < 1.1.1 Build 250908 Rel.112945 (affected)
TP-Link Systems Inc.	HS210 v3	0 < 1.1.0 Build 250225 Rel.163425 (affected)
TP-Link Systems Inc.	HS300 v2	0 < 1.1.2 Build 241220 Rel.171333 (affected)
TP-Link Systems Inc.	KP200 v3	0 < 1.1.0 Build 250225 Rel.171724 (affected)
TP-Link Systems Inc.	KP303 v2	0 < 1.1.2 Build 241220 Rel.173321 (affected)
TP-Link Systems Inc.	KS200 v1	0 < 1.1.2 Build 241223 Rel.103857 (affected)
TP-Link Systems Inc.	EP40A v1	0 < 1.1.1 Build 250908 Rel.112526 (affected)
TP-Link Systems Inc.	KS220 v1	0 < 1.1.3 Build 241223 Rel.105515 (affected)
TP-Link Systems Inc.	KS200M v1	0 < 1.1.4 Build 241223 Rel.104700 (affected)
TP-Link Systems Inc.	ES20M v1	0 < 1.1.6 Build 250522 Rel.210254 (affected)
TP-Link Systems Inc.	KS220M v1	0 < 1.1.6 Build 250522 Rel.210254 (affected)
TP-Link Systems Inc.	KP400 v3	0 < 1.1.0 Build 250225 Rel.171723 (affected)
TP-Link Systems Inc.	KL125 v4	0 < 1.1.1 Build 260710 Rel.082646 (affected)
TP-Link Systems Inc.	KL135 v2	0 < 1.1.1 Build 260710 Rel.082646 (affected)
TP-Link Systems Inc.	KL110 v4	0 < 1.1.1 Build 260710 Rel.082646 (affected)
TP-Link Systems Inc.	KL420L5 v1	0 < 1.4.2 Build 260605 Rel.035033 (affected)

Exploitation & Remediation

References & Technical Advisories

NVD Listing ↗ MITRE Listing ↗ GitHub Advisory ↗

No reference links found.

Threat Intelligence Signals

GitHub Advisory

GHSA-jmmx-r2fg-mcgh ↗

CVSS Vector Breakdown

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality

Integrity

Availability

Identity & Timeline

Status	PUBLISHED
Assigning Authority	TP-Link Systems Inc. · Vendor · USA
Reserved	2026-10-09T22:41:44
Published	2026-10-14T00:06:08
Last Updated	2026-10-14T00:06:08

MITRE ATT&CK Mapping

Tactics

Techniques

CVE-2026-108473

—

Public Weaponization & Exploit Code Exploit-DB Catalog

Weaknesses (CWE)

Affected Products & Versions

Exploitation & Remediation

References & Technical Advisories

Threat Intelligence Signals

CVSS Vector Breakdown

Identity & Timeline

SSVC Prioritization

MITRE ATT&CK Mapping

CVE-2026-108473

—

Public Weaponization & Exploit Code Exploit-DB Catalog

Weaknesses (CWE)

Affected Products & Versions

Exploitation & Remediation

References & Technical Advisories

Threat Intelligence Signals

CVSS Vector Breakdown

Identity & Timeline

SSVC Prioritization

MITRE ATT&CK Mapping

Community Chatter & Buzz

Related Intelligence

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