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. 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ui | Airmax Ac Firmware | < 8.7.21 |
| Ui | Airmax Ac | - |
| Ui | Airmax M Firmware | < 6.3.24 |
| Ui | Airmax M | - |
| Ui | Airfiber Af60-Xg Firmware | < 1.2.3 |
| Ui | Airfiber Af60-Xg | - |
| Ui | Airfiber Af60 Firmware | < 2.6.8 |
| Ui | Airfiber Af60 | - |
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-21639?
CVE-2026-21639 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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. Af...
How severe is CVE-2026-21639?
CVE-2026-21639 has been rated MEDIUM with a CVSS base score of 5.4/10. 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.