FKIE_CVE-2026-76784
Vulnerability from fkie_nvd - Published: 2026-08-26 18:17 - Updated: 2026-08-28 19:02
Severity
Summary
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.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "HS103P3 / HS103P4 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",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.1.1 Build 250908 Rel.112508",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "EP25 V2",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.0.3 Build 240529 Rel.145252",
"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": "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": "EP40A",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.1.1 Build 250908 Rel.112526",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "KP125MP2 / KP125MP4",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.2.5 Build 241213 Rel.172504",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "KP115",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.1.1 Build 250908 Rel.112945",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "KS225",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.1.1 Build 240626 Rel.175125",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "EP40M",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.1.0 Build 240415 Rel.171219",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "KS205",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.1.1 Build 240724 Rel.105920",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "KS240",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.0.6 Build 240122 Rel.160100",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "ES20M",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.1.6 Build 250522 Rel.210254",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "KS220M",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.1.6 Build 250522 Rel.210254",
"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": "HS200 V5.26",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.0.3 Build 240723 Rel.192622",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "HS220-LA(US) 6.6 / HS220-BL(US) 6.6",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.0.3 Build 240723 Rel.192630",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "HS220 V3.26",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.1.1 Build 240802 Rel.094131",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "HS220-LA(US) 4.6 / HS220-BL(US) 4.6",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.1.1 Build 240802 Rel.094142",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"product": "KL125",
"vendor": "TP-Link Systems Inc.",
"versions": [
{
"lessThan": "1.1.1 Build 260710 Rel.082646",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"source": "f23511db-6c3e-4e32-a477-6aa17d310630"
}
],
"cveTags": [],
"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."
}
],
"id": "CVE-2026-76784",
"lastModified": "2026-08-28T19:02:53.760",
"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"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-76784",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-26T18:43:28.394552Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-08-26T18:17:01.903",
"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/in/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/5267/"
}
],
"sourceIdentifier": "f23511db-6c3e-4e32-a477-6aa17d310630",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-325"
}
],
"source": "f23511db-6c3e-4e32-a477-6aa17d310630",
"type": "Secondary"
}
]
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Loading…
Loading…