High

Improper Authentication and Credential Exposure in Multiple TP-Link Kasa Devices

Type: advisorySource: Official CVE List1 source record

Multiple Kasa devices contain an improper authentication vulnerability in the local device-management protocol. An unauthenticated adjacent attacker may send management instructions to an affected device without adequate authentication or authorization, allowing modification of the device state or management settings. Under certain usage conditions involving interaction between the user, mobile application, and device-cloud service, insufficient protection of account-related communications may also expose account information. Successful exploitation may allow an unauthenticated adjacent-network attacker to perform unauthorized device-management actions and disrupt legitimate user control. Under certain conditions, account-related information may also be exposed, potentially leading to compromise of the associated cloud account.

Announced 14 Oct 2026Group revision 1

Original source ↗

CVE-2026-108473

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-108473

HS103 v5

Source reference: /containers/cna/affected/0/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

EP10 v1

Source reference: /containers/cna/affected/1/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

EP40 v1

Source reference: /containers/cna/affected/2/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

HS200 v5

Source reference: /containers/cna/affected/3/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

KP401 v1

Source reference: /containers/cna/affected/4/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

KS230 KIT v2

Source reference: /containers/cna/affected/5/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

KP405 v1

Source reference: /containers/cna/affected/6/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

HS220 v3

Source reference: /containers/cna/affected/7/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

KP115 v1

Source reference: /containers/cna/affected/8/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

HS210 v3

Source reference: /containers/cna/affected/9/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

HS300 v2

Source reference: /containers/cna/affected/10/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

KP200 v3

Source reference: /containers/cna/affected/11/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

KP303 v2

Source reference: /containers/cna/affected/12/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

KS200 v1

Source reference: /containers/cna/affected/13/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

EP40A v1

Source reference: /containers/cna/affected/14/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

KS220 v1

Source reference: /containers/cna/affected/15/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

KS200M v1

Source reference: /containers/cna/affected/16/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

ES20M v1

Source reference: /containers/cna/affected/17/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

KS220M v1

Source reference: /containers/cna/affected/18/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

KP400 v3

Source reference: /containers/cna/affected/19/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

KL125 v4

Source reference: /containers/cna/affected/20/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

KL135 v2

Source reference: /containers/cna/affected/21/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

KL110 v4

Source reference: /containers/cna/affected/22/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

KL420L5 v1

Source reference: /containers/cna/affected/23/product

Affected versions: Not stated in this record
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "HS103 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 v1",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "1.1.1 Build 250908 Rel.112508",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "EP40 v1",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "1.1.0 Build 250225 Rel.171723",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "HS200 v5",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "1.1.2 Build 241220 Rel.165559",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "KP401 v1",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "1.1.2 Build 241223 Rel.094434",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "KS230 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"
      }
    ],
    "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": "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": "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": "KS200 v1",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "1.1.2 Build 241223 Rel.103857",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "EP40A v1",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "1.1.1 Build 250908 Rel.112526",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "KS220 v1",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "1.1.3 Build 241223 Rel.105515",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "KS200M v1",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "1.1.4 Build 241223 Rel.104700",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "ES20M v1",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "1.1.6 Build 250522 Rel.210254",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "KS220M v1",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "1.1.6 Build 250522 Rel.210254",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "KP400 v3",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "1.1.0 Build 250225 Rel.171723",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "KL125 v4",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "1.1.1 Build 260710 Rel.082646",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "KL135 v2",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "1.1.1 Build 260710 Rel.082646",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "KL110 v4",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "1.1.1 Build 260710 Rel.082646",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "KL420L5 v1",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "1.4.2 Build 260605 Rel.035033",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

Related CVEs: CVE-2026-108473
Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event: #22905 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 06:09:57 GMT
Publisher date: Wed, 14 Oct 2026 00:06:08 GMT

Read the original announcement

Revision history

25 Oct 2026CVE-2026-108473 · Revision 1Source updated