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HIGH · 8.8

CVE-2026-21639

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.

Vulnerability 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.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
UiAirmax Ac Firmware< 8.7.21
UiAirmax Ac-
UiAirmax M Firmware< 6.3.24
UiAirmax M-
UiAirfiber Af60-Xg Firmware< 1.2.3
UiAirfiber Af60-Xg-
UiAirfiber Af60 Firmware< 2.6.8
UiAirfiber Af60-

Related Weaknesses (CWE)

CWE-77CWE-120

References

FAQ

What is CVE-2026-21639?

CVE-2026-21639 is a vulnerability with a CVSS score of 8.8 (HIGH). 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.

How severe is CVE-2026-21639?

CVE-2026-21639 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-21639?

Check the references section above for vendor advisories and patch information. Affected products include: Ui Airmax Ac Firmware, Ui Airmax Ac, Ui Airmax M Firmware, Ui Airmax M, Ui Airfiber Af60-Xg Firmware.