CVE-2026-21639
HIGHCVSS 8.8/10EPSS 0.27%
Last modified
CVE-2026-21639 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 0.27% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Ui | Airmax Ac Firmware | < 8.7.21 |
| Ui | Airmax M Firmware | < 6.3.24 |
| Ui | Airfiber Af60-Xg Firmware | < 1.2.3 |
| Ui | Airfiber Af60 Firmware | < 2.6.8 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2026-21639?
CVE-2026-21639 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.
How do I fix CVE-2026-21639?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2026-21639?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST