Vulnerability-Lookup

CVE-2026-76784 (GCVE-0-2026-76784)

Vulnerability from cvelistv5 – Published: 2026-08-26 17:47 – Updated: 2026-08-26 18:50

Title

Insufficient Cryptographic Protections in Local Device Communication Protocol on Multiple TP-Link Kasa Smart Home Devices

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.

Severity

8.7 (High)


                        
                          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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-26 18:43 UTC

CWE

CWE-325 - Missing Cryptographic Step

Assigner

TPLink mitre root

References

4 references

URL	Tags
https://www.tp-link.com/us/support/download/	patch
https://www.tp-link.com/en/support/download/	patch
https://www.tp-link.com/in/support/download/	patch
https://www.tp-link.com/us/support/faq/5267/	vendor-advisory

Impacted products

20 products

Vendor	Product	Version	CPE status
TP-Link Systems Inc.	HS103P3 / HS103P4 v5	Affected: 0 , < 1.1.3 Build 250908 Rel.112508 (custom)	guessed
TP-Link Systems Inc.	EP10	Affected: 0 , < 1.1.1 Build 250908 Rel.112508 (custom)	guessed
TP-Link Systems Inc.	EP25 V2	Affected: 0 , < 1.0.3 Build 240529 Rel.145252 (custom)	guessed
TP-Link Systems Inc.	HS300 V2	Affected: 0 , < 1.1.2 Build 241220 Rel.171333 (custom)	guessed
TP-Link Systems Inc.	KP303 V2	Affected: 0 , < 1.1.2 Build 241220 Rel.173321 (custom)	guessed
TP-Link Systems Inc.	EP40A	Affected: 0 , < 1.1.1 Build 250908 Rel.112526 (custom)	guessed
TP-Link Systems Inc.	KP125MP2 / KP125MP4	Affected: 0 , < 1.2.5 Build 241213 Rel.172504 (custom)	guessed
TP-Link Systems Inc.	KP115	Affected: 0 , < 1.1.1 Build 250908 Rel.112945 (custom)	guessed
TP-Link Systems Inc.	KS225	Affected: 0 , < 1.1.1 Build 240626 Rel.175125 (custom)	guessed
TP-Link Systems Inc.	EP40M	Affected: 0 , < 1.1.0 Build 240415 Rel.171219 (custom)	guessed
TP-Link Systems Inc.	KS205	Affected: 0 , < 1.1.1 Build 240724 Rel.105920 (custom)	guessed
TP-Link Systems Inc.	KS240	Affected: 0 , < 1.0.6 Build 240122 Rel.160100 (custom)	guessed
TP-Link Systems Inc.	ES20M	Affected: 0 , < 1.1.6 Build 250522 Rel.210254 (custom)	guessed
TP-Link Systems Inc.	KS220M	Affected: 0 , < 1.1.6 Build 250522 Rel.210254 (custom)	guessed
TP-Link Systems Inc.	KP200 V3	Affected: 0 , < 1.1.0 Build 250225 Rel.171724 (custom)	guessed
TP-Link Systems Inc.	HS200 V5.26	Affected: 0 , < 1.0.3 Build 240723 Rel.192622 (custom)	guessed
TP-Link Systems Inc.	HS220-LA(US) 6.6 / HS220-BL(US) 6.6	Affected: 0 , < 1.0.3 Build 240723 Rel.192630 (custom)	guessed
TP-Link Systems Inc.	HS220 V3.26	Affected: 0 , < 1.1.1 Build 240802 Rel.094131 (custom)	guessed
TP-Link Systems Inc.	HS220-LA(US) 4.6 / HS220-BL(US) 4.6	Affected: 0 , < 1.1.1 Build 240802 Rel.094142 (custom)	guessed
TP-Link Systems Inc.	KL125	Affected: 0 , < 1.1.1 Build 260710 Rel.082646 (custom)	guessed

Credits

Priyanka Rushikesh Chaudhary (Research Scholar, CSIS Department, BITS Pilani, Hyderabad Campus, India), Rajib Ranjan Maiti (Associate Professor, CSIS Department, BITS Pilani, Hyderabad Campus, India)

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-76784

Vulnerability from fkie_nvd - Published: 2026-08-26 18:17 - Updated: 2026-08-26 20:18

Severity

8.7 (High) - 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

Summary

References

	URL	Tags
	f23511db-6c3e-4e32-a477-6aa17d310630	https://www.tp-link.com/en/support/download/
	f23511db-6c3e-4e32-a477-6aa17d310630	https://www.tp-link.com/in/support/download/
	f23511db-6c3e-4e32-a477-6aa17d310630	https://www.tp-link.com/us/support/download/
	f23511db-6c3e-4e32-a477-6aa17d310630	https://www.tp-link.com/us/support/faq/5267/

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
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          "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"
            }
          ]
        },
        {
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          "product": "KP125MP2 / KP125MP4",
          "vendor": "TP-Link Systems Inc.",
          "versions": [
            {
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              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
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          "product": "KP115",
          "vendor": "TP-Link Systems Inc.",
          "versions": [
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              "status": "affected",
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              "versionType": "custom"
            }
          ]
        },
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              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
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        },
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              "status": "affected",
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              "versionType": "custom"
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          "product": "KS205",
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            }
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              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
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        },
        {
          "defaultStatus": "unaffected",
          "product": "ES20M",
          "vendor": "TP-Link Systems Inc.",
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              "status": "affected",
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          "product": "KP200 V3",
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          "product": "HS200 V5.26",
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        },
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          "product": "KL125",
          "vendor": "TP-Link Systems Inc.",
          "versions": [
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              "status": "affected",
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            }
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        }
      ],
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630"
    }
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  "cveTags": [],
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      "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": "2026-08-26T20:18:01.487",
  "metrics": {
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          "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",
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          "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",
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    "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": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-325"
        }
      ],
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
      "type": "Secondary"
    }
  ]
}

GHSA-PFWG-RGVF-86XW

Vulnerability from github – Published: 2026-08-26 18:31 – Updated: 2026-08-26 18:31

Details

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.

Severity

8.7 (High)


                  
                    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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-76784"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-325"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-26T18:17:01Z",
    "severity": "HIGH"
  },
  "details": "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": "GHSA-pfwg-rgvf-86xw",
  "modified": "2026-08-26T18:31:57Z",
  "published": "2026-08-26T18:31:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-76784"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/en/support/download"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/in/support/download"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/us/support/download"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/us/support/faq/5267"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ]
}

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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

CVE-2026-76784 (GCVE-0-2026-76784)

FKIE_CVE-2026-76784

GHSA-PFWG-RGVF-86XW

Tags

Sightings

Nomenclature