CVE-2026-21638 | Ubiquiti UBB-XG/UDB-Pro/UDB-Pro-Sector/UBB airMAX Wireless Protocol command injection

January 8, 2026 Yanac

A vulnerability classified as critical has been found in Ubiquiti UBB-XG, UDB-Pro, UDB-Pro-Sector and UBB. Affected by this issue is some unknown functionality of the component airMAX Wireless Protocol. Performing a manipulation results in command injection.

This vulnerability was named CVE-2026-21638. The attack needs to be approached within the local network. There is no available exploit.

It is recommended to upgrade the affected component.VulDB Recent EntriesRead More