What’s Vulnerable › Vulnerabilities

CVE-2026-108473: Improper Authentication and Credential Exposure in Multiple TP-Link Kasa Devices

Description

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.

Affected products

How to fix

Upgrade to a fixed version: TP-Link Systems Inc. EP10 v1 1.1.1 Build 250908 Rel.112508; TP-Link Systems Inc. EP40 v1 1.1.0 Build 250225 Rel.171723; TP-Link Systems Inc. EP40A v1 1.1.1 Build 250908 Rel.112526; TP-Link Systems Inc. ES20M v1 1.1.6 Build 250522 Rel.210254; TP-Link Systems Inc. HS103 v5 1.1.3 Build 250908 Rel.112508; TP-Link Systems Inc. HS200 v5 1.1.2 Build 241220 Rel.165559; TP-Link Systems Inc. HS210 v3 1.1.0 Build 250225 Rel.163425; TP-Link Systems Inc. HS220 v3 1.1.4 Build 241220 Rel.171050; TP-Link Systems Inc. HS300 v2 1.1.2 Build 241220 Rel.171333; TP-Link Systems Inc. KL110 v4 1.1.1 Build 260710 Rel.082646; TP-Link Systems Inc. KL125 v4 1.1.1 Build 260710 Rel.082646; TP-Link Systems Inc. KL135 v2 1.1.1 Build 260710 Rel.082646. Check the vendor advisory for mitigations.

References

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