Description

A malicious actor in Wi-Fi range of the affected product could leverage a vulnerability in the airMAX Wireless Protocol to achieve a remote code execution (RCE) within the affected product. Affected Products: UBB-XG (Version 1.2.2 and earlier) UDB-Pro/UDB-Pro-Sector (Version 1.4.1 and earlier) UBB (Version 3.1.5 and earlier) Mitigation: Update your UBB-XG to Version 1.2.3 or later. Update your UDB-Pro/UDB-Pro-Sector to Version 1.4.2 or later. Update your UBB to Version 3.1.7 or later.

INFO

Published Date :

2026-01-08T16:14:22.563Z

Last Modified :

2026-01-09T04:55:27.784Z

Source :

hackerone
AFFECTED PRODUCTS

The following products are affected by CVE-2026-21638 vulnerability.

Vendors Products
Ubiquiti
  • Ubb
  • Ubb-xg
  • Udb-pro
  • Udb-pro-sector
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-21638.

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact