{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-76784", "assignerOrgId": "f23511db-6c3e-4e32-a477-6aa17d310630", "state": "PUBLISHED", "assignerShortName": "TPLink", "dateReserved": "2026-08-19T17:32:21.874Z", "datePublished": "2026-08-26T17:47:54.278Z", "dateUpdated": "2026-08-26T17:47:54.278Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "f23511db-6c3e-4e32-a477-6aa17d310630", "shortName": "TPLink", "dateUpdated": "2026-08-26T17:47:54.278Z" }, "title": "Insufficient Cryptographic Protections in Local Device Communication Protocol on Multiple TP-Link Kasa Smart Home Devices", "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-325", "description": "CWE-325: Missing Cryptographic Step", "type": "CWE" } ] } ], "impacts": [ { "capecId": "CAPEC-594", "descriptions": [ { "lang": "en", "value": "CAPEC-594 Traffic Injection" } ] } ], "affected": [ { "vendor": "TP-Link Systems Inc.", "product": "HS103P3 / HS103P4 v5", "versions": [ { "status": "affected", "version": "0", "lessThan": "1.1.3 Build 250908 Rel.112508", "versionType": "custom" } ], "defaultStatus": "unaffected" }, { "vendor": "TP-Link Systems Inc.", "product": "EP10", "versions": [ { "status": "affected", "version": "0", "lessThan": "1.1.1 Build 250908 Rel.112508", "versionType": "custom" } ], "defaultStatus": "unaffected" }, { "vendor": "TP-Link Systems Inc.", "product": "EP25 V2", "versions": [ { "status": "affected", "version": "0", "lessThan": "1.0.3 Build 240529 Rel.145252", "versionType": "custom" } ], "defaultStatus": "unaffected" }, { "vendor": "TP-Link Systems Inc.", "product": "HS300 V2", "versions": [ { "status": "affected", "version": "0", "lessThan": "1.1.2 Build 241220 Rel.171333", "versionType": "custom" } ], "defaultStatus": "unaffected" }, { "vendor": "TP-Link Systems Inc.", "product": "KP303 V2", "versions": [ { "status": "affected", "version": "0", "lessThan": "1.1.2 Build 241220 Rel.173321", "versionType": "custom" } ], "defaultStatus": "unaffected" }, { "vendor": "TP-Link Systems Inc.", "product": "EP40A", "versions": [ { "status": "affected", "version": "0", "lessThan": "1.1.1 Build 250908 Rel.112526", "versionType": "custom" } ], "defaultStatus": "unaffected" }, { "vendor": "TP-Link Systems Inc.", "product": "KP125MP2 / KP125MP4", "versions": [ { "status": "affected", "version": "0", "lessThan": "1.2.5 Build 241213 Rel.172504", "versionType": "custom" } ], "defaultStatus": "unaffected" }, { "vendor": "TP-Link Systems Inc.", "product": "KP115", "versions": [ { "status": "affected", "version": "0", "lessThan": "1.1.1 Build 250908 Rel.112945", "versionType": "custom" } ], "defaultStatus": "unaffected" }, { "vendor": "TP-Link Systems Inc.", "product": "KS225", "versions": [ { "status": "affected", "version": "0", "lessThan": "1.1.1 Build 240626 Rel.175125", "versionType": "custom" } ], "defaultStatus": "unaffected" }, { "vendor": "TP-Link Systems Inc.", "product": "EP40M", "versions": [ { "status": "affected", "version": "0", "lessThan": "1.1.0 Build 240415 Rel.171219", "versionType": "custom" } ], "defaultStatus": "unaffected" }, { "vendor": "TP-Link Systems Inc.", "product": "KS205", "versions": [ { "status": "affected", "version": "0", "lessThan": "1.1.1 Build 240724 Rel.105920", "versionType": "custom" } ], "defaultStatus": "unaffected" }, { "vendor": "TP-Link Systems Inc.", "product": "KS240", "versions": [ { "status": "affected", "version": "0", "lessThan": "1.0.6 Build 240122 Rel.160100", "versionType": "custom" } ], "defaultStatus": "unaffected" }, { "vendor": "TP-Link Systems Inc.", "product": "ES20M", "versions": [ { "status": "affected", "version": "0", "lessThan": "1.1.6 Build 250522 Rel.210254", "versionType": "custom" } ], "defaultStatus": "unaffected" }, { "vendor": "TP-Link Systems Inc.", "product": "KS220M", "versions": [ { "status": "affected", "version": "0", "lessThan": "1.1.6 Build 250522 Rel.210254", "versionType": "custom" } ], "defaultStatus": "unaffected" }, { "vendor": "TP-Link Systems Inc.", "product": "KP200 V3", "versions": [ { "status": "affected", "version": "0", "lessThan": "1.1.0 Build 250225 Rel.171724", "versionType": "custom" } ], "defaultStatus": "unaffected" }, { "vendor": "TP-Link Systems Inc.", "product": "HS200 V5.26", "versions": [ { "status": "affected", "version": "0", "lessThan": "1.0.3 Build 240723 Rel.192622", "versionType": "custom" } ], "defaultStatus": "unaffected" }, { "vendor": "TP-Link Systems Inc.", "product": "HS220-LA(US) 6.6 / HS220-BL(US) 6.6", "versions": [ { "status": "affected", "version": "0", "lessThan": "1.0.3 Build 240723 Rel.192630", "versionType": "custom" } ], "defaultStatus": "unaffected" }, { "vendor": "TP-Link Systems Inc.", "product": "HS220 V3.26", "versions": [ { "status": "affected", "version": "0", "lessThan": "1.1.1 Build 240802 Rel.094131", "versionType": "custom" } ], "defaultStatus": "unaffected" }, { "vendor": "TP-Link Systems Inc.", "product": "HS220-LA(US) 4.6 / HS220-BL(US) 4.6", "versions": [ { "status": "affected", "version": "0", "lessThan": "1.1.1 Build 240802 Rel.094142", "versionType": "custom" } ], "defaultStatus": "unaffected" }, { "vendor": "TP-Link Systems Inc.", "product": "KL125", "versions": [ { "status": "affected", "version": "0", "lessThan": "1.1.1 Build 260710 Rel.082646", "versionType": "custom" } ], "defaultStatus": "unaffected" } ], "descriptions": [ { "lang": "en", "value": "Multiple\nTP-Link Kasa smart home devices contain insufficient cryptographic protections\nin the local device communication protocol. An adjacent network attacker may\nintercept, replay or forge locally exchanged control messages, potentially\nresulting in unauthorized device control. \n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation could allow an attacker to manipulate the operational state of an\naffected device, resulting in unauthorized state changes, disruption of normal\ndevice functionality or a denial-of-service condition.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "

Multiple\nTP-Link Kasa smart home devices contain insufficient cryptographic protections\nin the local device communication protocol. An adjacent network attacker may\nintercept, replay or forge locally exchanged control messages, potentially\nresulting in unauthorized device control.

\n\n

Successful\nexploitation could allow an attacker to manipulate the operational state of an\naffected device, resulting in unauthorized state changes, disruption of normal\ndevice functionality or a denial-of-service condition.

" } ] } ], "references": [ { "url": "https://www.tp-link.com/us/support/download/", "tags": [ "patch" ] }, { "url": "https://www.tp-link.com/en/support/download/", "tags": [ "patch" ] }, { "url": "https://www.tp-link.com/in/support/download/", "tags": [ "patch" ] }, { "url": "https://www.tp-link.com/us/support/faq/5267/", "tags": [ "vendor-advisory" ] } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV4_0": { "attackVector": "ADJACENT", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 8.7, "vectorString": "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" } } ], "credits": [ { "lang": "en", "value": "Priyanka Rushikesh Chaudhary (Research Scholar, CSIS Department, BITS Pilani, Hyderabad Campus, India), Rajib Ranjan Maiti (Associate Professor, CSIS Department, BITS Pilani, Hyderabad Campus, India)", "type": "finder" } ], "source": { "discovery": "UNKNOWN" }, "x_generator": { "engine": "Vulnogram 1.0.4" } } } }