CVE-2026-21639

Summary

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.

Affected Software

VendorProductVersion RangeStatus
Ubiquiti IncairMAX AC0 < 8.7.21affected
Ubiquiti IncairMAX M0 < 6.3.24affected
Ubiquiti IncairFiber AF60-XG0 < 1.2.3affected
Ubiquiti IncairFiber AF600 < 2.6.8affected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References