Vulnerability Intelligence Report
Insufficient Cryptographic Protections in Local Device Communication Protocol on Multiple TP-Link Kasa Smart Home Devices
CVE-2026-76784
Multiple TP-Link Kasa smart home devices contain insufficient cryptographic protections in the local device communication protocol. An adjacent network attacker may intercept, replay or forge locally exchanged control messages, potentially resulting in unauthorized device control. Successful exploitation could allow an attacker to manipulate the operational state of an affected device, resulting in unauthorized state changes, disruption of normal device functionality or a denial-of-service condition.
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-325 ↗CWE-325: Missing Cryptographic Step
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| TP-Link Systems Inc. | HS103P3 / HS103P4 v5 | 0 < 1.1.3 Build 250908 Rel.112508 (affected) |
| TP-Link Systems Inc. | EP10 | 0 < 1.1.1 Build 250908 Rel.112508 (affected) |
| TP-Link Systems Inc. | EP25 V2 | 0 < 1.0.3 Build 240529 Rel.145252 (affected) |
| TP-Link Systems Inc. | HS300 V2 | 0 < 1.1.2 Build 241220 Rel.171333 (affected) |
| TP-Link Systems Inc. | KP303 V2 | 0 < 1.1.2 Build 241220 Rel.173321 (affected) |
| TP-Link Systems Inc. | EP40A | 0 < 1.1.1 Build 250908 Rel.112526 (affected) |
| TP-Link Systems Inc. | KP125MP2 / KP125MP4 | 0 < 1.2.5 Build 241213 Rel.172504 (affected) |
| TP-Link Systems Inc. | KP115 | 0 < 1.1.1 Build 250908 Rel.112945 (affected) |
| TP-Link Systems Inc. | KS225 | 0 < 1.1.1 Build 240626 Rel.175125 (affected) |
| TP-Link Systems Inc. | EP40M | 0 < 1.1.0 Build 240415 Rel.171219 (affected) |
| TP-Link Systems Inc. | KS205 | 0 < 1.1.1 Build 240724 Rel.105920 (affected) |
| TP-Link Systems Inc. | KS240 | 0 < 1.0.6 Build 240122 Rel.160100 (affected) |
| TP-Link Systems Inc. | ES20M | 0 < 1.1.6 Build 250522 Rel.210254 (affected) |
| TP-Link Systems Inc. | KS220M | 0 < 1.1.6 Build 250522 Rel.210254 (affected) |
| TP-Link Systems Inc. | KP200 V3 | 0 < 1.1.0 Build 250225 Rel.171724 (affected) |
| TP-Link Systems Inc. | HS200 V5.26 | 0 < 1.0.3 Build 240723 Rel.192622 (affected) |
| TP-Link Systems Inc. | HS220-LA(US) 6.6 / HS220-BL(US) 6.6 | 0 < 1.0.3 Build 240723 Rel.192630 (affected) |
| TP-Link Systems Inc. | HS220 V3.26 | 0 < 1.1.1 Build 240802 Rel.094131 (affected) |
| TP-Link Systems Inc. | HS220-LA(US) 4.6 / HS220-BL(US) 4.6 | 0 < 1.1.1 Build 240802 Rel.094142 (affected) |
| TP-Link Systems Inc. | KL125 | 0 < 1.1.1 Build 260710 Rel.082646 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | TP-Link Systems Inc. · Vendor · USA |
| Reserved | 2026-08-19T17:32:21 |
| Published | 2026-08-26T17:47:54 |
| Last Updated | 2026-08-26T18:50:19 |
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