CVE-2026-21639CWE-120

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…

Medium · published January 8, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
32.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00392 · 32.2th percentile
Weakness
CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Published
2026-01-08T16:14Z
EPSS history
Timeline
  • 08 JAN 16:14Z
    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…
    cvelistv5