---
id: CVE-2026-100420
title: Information disclosure vulnerability in the cloud-client daemon of Deco BE63
summary: "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 th…"
severity: medium
cvss: 6.8
cvssVector: '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'
cvssSource: cna
cwe:
  - CWE-202
vendor: TP-Link Systems Inc.
product: Deco BE63 V2.0
affected:
  - deco_be63_v2.0 < 1.3.3 Build 26071612
published: '2026-10-21'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T23:04:28.083Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-100420'
references:
  - url: 'https://www.tp-link.com/us/support/download/deco-be63/v2.60/#Firmware'
  - url: 'https://www.tp-link.com/us/support/faq/5357/'
tags:
  - cve.org
ingestedAt: '2026-10-21T23:20:10.318Z'
---

## Overview

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.

## Affected

- `deco_be63_v2.0 < 1.3.3 Build 26071612`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.