CVE-2026-21638 | THREATINT

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: UBB-XG (Version 1.2.2 and earlier) UDB-Pro/UDB-Pro-Sector (Version 1.4.1 and earlier) UBB (Version 3.1.5 and earlier) Mitigation: Update your UBB-XG to Version 1.2.3 or later. Update your UDB-Pro/UDB-Pro-Sector to Version 1.4.2 or later. Update your UBB to Version 3.1.7 or later.

PUBLISHED Reserved 2026-01-01 | Published 2026-01-08 | Updated 2026-01-09 | Assigner hackerone

HIGH: 8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Product status

Default status

unaffected

Any version before 1.2.3

affected

Default status

unaffected

Any version before 1.4.2

affected

Default status

unaffected

Any version before 3.1.7

affected

References

community.ui.com/...060/cde18da7-2bc4-41bb-a9cc-48a4a4c479c1

cve.org (CVE-2026-21638)

nvd.nist.gov (CVE-2026-21638)

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