CVE-2026-100420

Full vulnerability record from the local CVENow database.

Description

A sensitive information disclosure vulnerability in the cloud-client daemon of Deco BE63 allows authenticated attackers to retrieve the plaintext TP-Link ID account password. Successful exploitation may allow attackers to compromise the associated cloud account and perform unauthorized actions on behalf of the affected user.

Severity

MEDIUM

CVSS score

6.8 (v4.0)

Vulnerability status

Deferred

Source identifier

f23511db-6c3e-4e32-a477-6aa17d310630

Published

2026-10-21 23:17:23.053000

Last modified

2026-10-22 15:31:24.813000

View original CVE JSON

{
  "id": "CVE-2026-100420",
  "sourceIdentifier": "f23511db-6c3e-4e32-a477-6aa17d310630",
  "published": "2026-10-21T23:17:23.053",
  "lastModified": "2026-10-22T15:31:24.813",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A sensitive information disclosure vulnerability in the cloud-client daemon of Deco BE63 allows authenticated attackers to retrieve the plaintext TP-Link ID account password. \n\nSuccessful exploitation may allow attackers to compromise the associated cloud account and perform unauthorized actions on behalf of the affected user."
    }
  ],
  "affected": [
    {
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
      "affectedData": [
        {
          "vendor": "TP-Link Systems Inc.",
          "product": "Deco BE63 V2.0",
          "defaultStatus": "unaffected",
          "modules": [
            "cloud-client"
          ],
          "versions": [
            {
              "version": "0",
              "lessThan": "1.3.3 Build 26071612",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/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",
          "baseScore": 6.8,
          "baseSeverity": "MEDIUM",
          "attackVector": "ADJACENT",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "HIGH",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "NONE",
          "vulnAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-202"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://www.tp-link.com/us/support/download/deco-be63/v2.60/#Firmware",
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630"
    },
    {
      "url": "https://www.tp-link.com/us/support/faq/5357/",
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630"
    }
  ]
}