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: airMAX AC (Version 8.7.20 and earlier) airMAX M (Version 6.3.22 and earlier) airFiber AF60-XG (Version 1.2.2 and earlier) airFiber AF60 (Version 2.6.7 and earlier) Mitigation: Update your airMAX AC to Version 8.7.21 or later. Update your airMAX M to Version 6.3.24 or later. Update your airFiber AF60-XG to Version 1.2.3 or later. Update your airFiber AF60 to Version 2.6.8 or later.

INFO

Published Date :

2026-01-08T16:14:22.626Z

Last Modified :

2026-01-08T17:21:53.724Z

Source :

hackerone
AFFECTED PRODUCTS

The following products are affected by CVE-2026-21639 vulnerability.

Vendors Products
Ubiquiti
  • Airfiber Af60
  • Airfiber Af60 Xg
  • Airmax Ac
  • Airmax M
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-21639.

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