{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-108473", "assignerOrgId": "f23511db-6c3e-4e32-a477-6aa17d310630", "state": "PUBLISHED", "assignerShortName": "TPLink", "dateReserved": "2026-10-09T22:41:44.707Z", "datePublished": "2026-10-14T00:06:08.695Z", "dateUpdated": "2026-10-14T00:06:08.695Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f23511db-6c3e-4e32-a477-6aa17d310630", "shortName": "TPLink", "dateUpdated": "2026-10-14T00:06:08.695Z"}, "title": "Improper Authentication and Credential Exposure in Multiple TP-Link Kasa Devices", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-306", "description": "CWE-306 Missing authentication for critical function", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-115", "descriptions": [{"lang": "en", "value": "CAPEC-115 Authentication Bypass"}]}], "affected": [{"vendor": "TP-Link Systems Inc.", "product": "HS103 v5", "versions": [{"status": "affected", "version": "0", "lessThan": 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KIT v2", "versions": [{"status": "affected", "version": "0", "lessThan": "1.1.4 Build 241223 Rel.105830", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "TP-Link Systems Inc.", "product": "KP405 v1", "versions": [{"status": "affected", "version": "0", "lessThan": "1.1.0 Build 250225 Rel.174632", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "TP-Link Systems Inc.", "product": "HS220 v3", "versions": [{"status": "affected", "version": "0", "lessThan": "1.1.4 Build 241220 Rel.171050", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "TP-Link Systems Inc.", "product": "KP115 v1", "versions": [{"status": "affected", "version": "0", "lessThan": "1.1.1 Build 250908 Rel.112945", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "TP-Link Systems Inc.", "product": "HS210 v3", "versions": [{"status": "affected", "version": "0", "lessThan": "1.1.0 Build 250225 Rel.163425", "versionType": "custom"}], 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"custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Multiple\nKasa devices contain an improper authentication vulnerability in the local\ndevice-management protocol. An unauthenticated adjacent attacker may send\nmanagement instructions to an affected device without adequate authentication\nor authorization, allowing modification of the device state or management\nsettings. Under certain usage conditions involving interaction between the\nuser, mobile application, and device-cloud service, insufficient protection of\naccount-related communications may also expose account information.\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may allow an unauthenticated adjacent-network attacker to perform\nunauthorized device-management actions and disrupt legitimate user control.\nUnder certain conditions, account-related information may also be exposed,\npotentially leading to compromise of the associated cloud account.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Multiple\nKasa devices contain an improper authentication vulnerability in the local\ndevice-management protocol. An unauthenticated adjacent attacker may send\nmanagement instructions to an affected device without adequate authentication\nor authorization, allowing modification of the device state or management\nsettings. Under certain usage conditions involving interaction between the\nuser, mobile application, and device-cloud service, insufficient protection of\naccount-related communications may also expose account information.</p><p>\n\n</p><p>Successful\nexploitation may allow an unauthenticated adjacent-network attacker to perform\nunauthorized device-management actions and disrupt legitimate user control.\nUnder certain conditions, account-related information may also be exposed,\npotentially leading to compromise of the associated cloud account.</p>"}]}], "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/us/support/faq/5342/", "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": "M. Hammad Mazhar from University of Northern Colorado & Madeline Cooreman", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "HS103 v5", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.3 Build 250908 Rel.112508", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "EP10 v1", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.1 Build 250908 Rel.112508", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "EP40 v1", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.0 Build 250225 Rel.171723", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "HS200 v5", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.2 Build 241220 Rel.165559", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "KP401 v1", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.2 Build 241223 Rel.094434", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "KS230 KIT v2", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.4 Build 241223 Rel.105830", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "KP405 v1", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.0 Build 250225 Rel.174632", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "HS220 v3", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.4 Build 241220 Rel.171050", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "KP115 v1", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.1 Build 250908 Rel.112945", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "HS210 v3", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.0 Build 250225 Rel.163425", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "HS300 v2", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.2 Build 241220 Rel.171333", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "KP200 v3", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.0 Build 250225 Rel.171724", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "KP303 v2", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.2 Build 241220 Rel.173321", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "KS200 v1", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.2 Build 241223 Rel.103857", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "EP40A v1", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.1 Build 250908 Rel.112526", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "KS220 v1", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.3 Build 241223 Rel.105515", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "KS200M v1", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.4 Build 241223 Rel.104700", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "ES20M v1", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.6 Build 250522 Rel.210254", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "KS220M v1", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.6 Build 250522 Rel.210254", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "KP400 v3", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.0 Build 250225 Rel.171723", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "KL125 v4", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.1 Build 260710 Rel.082646", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "KL135 v2", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.1 Build 260710 Rel.082646", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "KL110 v4", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.1.1 Build 260710 Rel.082646", "status": "affected", "version": "0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "KL420L5 v1", "vendor": "TP-Link Systems Inc.", "versions": [{"lessThan": "1.4.2 Build 260605 Rel.035033", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "f23511db-6c3e-4e32-a477-6aa17d310630"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Multiple\nKasa devices contain an improper authentication vulnerability in the local\ndevice-management protocol. An unauthenticated adjacent attacker may send\nmanagement instructions to an affected device without adequate authentication\nor authorization, allowing modification of the device state or management\nsettings. Under certain usage conditions involving interaction between the\nuser, mobile application, and device-cloud service, insufficient protection of\naccount-related communications may also expose account information.\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may allow an unauthenticated adjacent-network attacker to perform\nunauthorized device-management actions and disrupt legitimate user control.\nUnder certain conditions, account-related information may also be exposed,\npotentially leading to compromise of the associated cloud account."}], "id": "CVE-2026-108473", "lastModified": "2026-10-14T01:17:06.030", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "ADJACENT", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "f23511db-6c3e-4e32-a477-6aa17d310630", "type": "Secondary"}]}, "published": "2026-10-14T01:17:06.030", "references": [{"source": "f23511db-6c3e-4e32-a477-6aa17d310630", "url": "https://www.tp-link.com/en/support/download/"}, {"source": "f23511db-6c3e-4e32-a477-6aa17d310630", "url": "https://www.tp-link.com/us/support/download/"}, {"source": "f23511db-6c3e-4e32-a477-6aa17d310630", "url": "https://www.tp-link.com/us/support/faq/5342/"}], "sourceIdentifier": "f23511db-6c3e-4e32-a477-6aa17d310630", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-306"}], "source": "f23511db-6c3e-4e32-a477-6aa17d310630", "type": "Secondary"}]}

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