Skip to content
Heist/ feed
Medium

Improper Authentication in Multiple TP-Link WiFi Repeaters

Type: advisorySource: Official CVE List1 source record

Multiple TP-Link Wi-Fi range extenders use a custom, reversible XOR-and-dictionary transformation in the HTTP web-management login flow. An unauthenticated attacker on the same local network who can capture the network traffic associated with legitimate administrator login may be able to derive an alternative credential value that produces the same accepted authentication result and use it to authenticate to the device’s web-management interface with administrator privileges. Exploitation requires the management login to use HTTP and the attacker to observe the session key, dictionary, and login value associated with a legitimate administrator login. Successful exploitation may allow an unauthenticated adjacent attacker to gain administrator access to the affected device and modify exposed configuration settings.

Announced Source revision 1
Original source ↗

CVE-2026-109506

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-2026-109506

RE190 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

RE200 v5

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

RE205 v4

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

RE215 v1

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

RE220 v3

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

RE230 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

RE300 v2

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

RE305 v4

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

RE330 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

RE335 v1

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

RE365 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

RE365 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

RE750C v4

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

RE450 v4.8

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

RE550 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

RE315 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

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "RE190 v5",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V5_260904",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "RE200 v5",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V5_260904",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "RE205 v4",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4_260904",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "RE215 v1",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V1_260904",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "RE220 v3",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V3_260904",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "RE230 v2",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V2_260904",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "RE300 v2",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V2_260904",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "RE305 v4",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4_260904",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "RE330 v1",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V1_260904",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "RE335 v1",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V1_260904",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "RE365 v2",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V2_260904",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "RE365 v3",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V3_260904",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "RE750C v4",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4_260904",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "RE450 v4.8",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V4_260915",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "RE550 v1",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V1_260915",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TP-Link Systems Inc.",
    "product": "RE315 v1",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "V1_260904 rel3959",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-109506

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#30119 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement