ZDI-26-128: (Pwn2Own) Ubiquiti Networks AI Pro Uncaught Exception Denial-of-Service Vulnerability
Published Feb 25, 2026
·Updated
This vulnerability allows network-adjacent attackers to create a denial-of-service condition on affected installations of Ubiquiti Networks AI Pro. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 6.5. The following CVEs are assigned: CVE-2026-21634.
Affected Software
1 affected component
Ubiquiti Networks AI Pro
Event History
Feb 25, 2026
Advisory Published
via ZDI·06:00 AM
Data Sourced
via ZDI·06:00 AM
Description
Frequently Asked Questions
1
What is the severity of ZDI-26-128?
The severity of ZDI-26-128 is rated at 6.5 according to the CVSS system.
2
How do I fix ZDI-26-128?
To fix ZDI-26-128, ensure that you apply the latest security patches provided by Ubiquiti Networks for the AI Pro software.
3
Who can exploit ZDI-26-128?
Network-adjacent attackers can exploit ZDI-26-128 without requiring authentication.
4
What type of vulnerability is ZDI-26-128?
ZDI-26-128 is an uncaught exception denial-of-service vulnerability.
5
Which software is affected by ZDI-26-128?
Ubiquiti Networks AI Pro is the software affected by the ZDI-26-128 vulnerability.