High severity · published Jan 8, 2026
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…
8.8
CVSS
0.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AA
Airfiber Af60 Firmware · UI
before 2.6.8 · source: NVD
AA
Airfiber Af60-xg Firmware · UI
before 1.2.3 · source: NVD
AA
Airmax AC Firmware · UI
before 8.7.21 · source: NVD
AM
Airmax M Firmware · UI
before 6.3.24 · source: NVD