CVE-2026-21638

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://community.ui.com/releases/Security-Advisory-Bulletin-060-060/cde18da7-2bc4-41bb-a9cc-48a4a4c479c1	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:ui:ubb-xg_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:ui:ubb-xg:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:ui:udb-pro_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:ui:udb-pro:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:o:ui:udb-pro-sector_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:ui:udb-pro-sector:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND

cpe:2.3:o:ui:ubb_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:ui:ubb:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-01-08 17:15

Updated : 2026-01-14 21:06

NVD link : CVE-2026-21638

Mitre link : CVE-2026-21638

CVE.ORG link : CVE-2026-21638

JSON object : View

Products Affected

ui

ubb_firmware
ubb-xg_firmware
udb-pro-sector_firmware
udb-pro-sector
udb-pro
udb-pro_firmware
ubb-xg
ubb

CWE

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

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