What’s Vulnerable › Vulnerabilities

CVE-2026-100420: Information disclosure vulnerability in the cloud-client daemon of Deco BE63

• Severity: medium (CVSS 6.8 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-21 · updated 2026-10-30
• Weakness: CWE-202

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.

Affected products

• TP-Link Systems Inc. Deco BE63 V2.0: before 1.3.3 Build 26071612 — fixed in 1.3.3 Build 26071612

How to fix

Upgrade to a fixed version: TP-Link Systems Inc. Deco BE63 V2.0 1.3.3 Build 26071612. Check the vendor advisory for mitigations.

References

• https://www.tp-link.com/us/support/download/deco-be63/v2.60/#Firmware
• https://www.tp-link.com/us/support/faq/5357/

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