CVE-2026-100420

Medium

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.

SeverityMedium

CVSS6.8

Exploit probability—

ProductDeco BE63 V2.0

PublishedOct 21, 2026

First seenOct 21, 2026

Weakness typeCWE-202CWE-202

How to fix

Update

TP-Link Systems Inc. Deco BE63 V2.01.3.3 Build 26071612 or later

Patches

tp-link.com/us/support/download/deco-be63/v2.60/#Firmware

Vendor advisories

tp-link.com/us/support/faq/5357/

Affected products

Product	Affected versions	Fixed in
TP-Link Systems Inc. Deco BE63 V2.0	v < 1.3.3 Build 26071612	1.3.3 Build 26071612

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