CVE-2026-100420
Information disclosure vulnerability in the cloud-client daemon of Deco BE63
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.
INFO
Published Date :
Oct. 21, 2026, 11:17 p.m.
Last Modified :
Oct. 21, 2026, 11:17 p.m.
Remotely Exploit :
No
Source :
f23511db-6c3e-4e32-a477-6aa17d310630
Affected Products
The following products are affected by CVE-2026-100420
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | MEDIUM | f23511db-6c3e-4e32-a477-6aa17d310630 | ||||
| CVSS 4.0 | MEDIUM | f23511db-6c3e-4e32-a477-6aa17d310630 |
Solution
- Update the Deco BE63 firmware to the latest version.
- Ensure all devices are running the patched software.
- Monitor for unauthorized account activity.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-100420.
| URL | Resource |
|---|---|
| https://www.tp-link.com/us/support/download/deco-be63/v2.60/#Firmware | |
| https://www.tp-link.com/us/support/faq/5357/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-100420 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-100420
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-100420 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-100420 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by f23511db-6c3e-4e32-a477-6aa17d310630
Oct. 21, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 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 Added CWE CWE-202 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/100xxx/CVE-2026-100420.json">CVE-2026-100420</a> Added Reference https://www.tp-link.com/us/support/download/deco-be63/v2.60/#Firmware Added Reference https://www.tp-link.com/us/support/faq/5357/