Vulnerability · Published Aug 26, 2026 · Assigned by TPLink
CVE-2026-76784Insufficient Cryptographic Protections in Local Device Communication Protocol on Multiple TP-Link Kasa Smart Home Devices
High 8.7
In plain English
A high-severity security flaw in EP10 from TP-Link Systems Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| TP-Link Systems Inc. | HS103P3 / HS103P4 v5 | 0 – before 1.1.3 Build 250908 Rel.112508 |
| TP-Link Systems Inc. | EP10 | 0 – before 1.1.1 Build 250908 Rel.112508 |
| TP-Link Systems Inc. | EP25 V2 | 0 – before 1.0.3 Build 240529 Rel.145252 |
| TP-Link Systems Inc. | HS300 V2 | 0 – before 1.1.2 Build 241220 Rel.171333 |
| TP-Link Systems Inc. | KP303 V2 | 0 – before 1.1.2 Build 241220 Rel.173321 |
| TP-Link Systems Inc. | EP40A | 0 – before 1.1.1 Build 250908 Rel.112526 |
| TP-Link Systems Inc. | KP125MP2 / KP125MP4 | 0 – before 1.2.5 Build 241213 Rel.172504 |
| TP-Link Systems Inc. | KP115 | 0 – before 1.1.1 Build 250908 Rel.112945 |
| TP-Link Systems Inc. | KS225 | 0 – before 1.1.1 Build 240626 Rel.175125 |
| TP-Link Systems Inc. | EP40M | 0 – before 1.1.0 Build 240415 Rel.171219 |
| TP-Link Systems Inc. | KS205 | 0 – before 1.1.1 Build 240724 Rel.105920 |
| TP-Link Systems Inc. | KS240 | 0 – before 1.0.6 Build 240122 Rel.160100 |
| TP-Link Systems Inc. | ES20M | 0 – before 1.1.6 Build 250522 Rel.210254 |
| TP-Link Systems Inc. | KS220M | 0 – before 1.1.6 Build 250522 Rel.210254 |
| TP-Link Systems Inc. | KP200 V3 | 0 – before 1.1.0 Build 250225 Rel.171724 |
| TP-Link Systems Inc. | HS200 V5.26 | 0 – before 1.0.3 Build 240723 Rel.192622 |
| TP-Link Systems Inc. | HS220-LA(US) 6.6 / HS220-BL(US) 6.6 | 0 – before 1.0.3 Build 240723 Rel.192630 |
| TP-Link Systems Inc. | HS220 V3.26 | 0 – before 1.1.1 Build 240802 Rel.094131 |
| TP-Link Systems Inc. | HS220-LA(US) 4.6 / HS220-BL(US) 4.6 | 0 – before 1.1.1 Build 240802 Rel.094142 |
| TP-Link Systems Inc. | KL125 | 0 – before 1.1.1 Build 260710 Rel.082646 |
Weakness: CWE-325 · Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N