#VU123324 Improper Authentication in UniFi Protect Application - CVE-2026-21633

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Main Vulnerability Database Vulnerabilities #VU123324

#VU123324 Improper Authentication in UniFi Protect Application - CVE-2026-21633

Published: February 27, 2026


Vulnerability identifier: #VU123324
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-21633
CWE-ID: CWE-287
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vulnerable software:
UniFi Protect Application
Software vendor:
Ubiquiti Networks

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to the lack of encryption in the communications channel within the discovery protocol. A remote attacker on the local network can bypass authentication process and gain unauthorized access to the application.


Remediation

Install updates from vendor's website.

External links