What is CVE-2026-54408?

CVE-2026-54408 is a high-severity vulnerability in Ubiquiti Inc Unifi Protect Application, classified under Improper Access Control. CVSS score: 8.6/10. Published 2026-07-02.

How severe is CVE-2026-54408?

High severity. CVSS v3 base score is 8.6 out of 10.

Vulnerability in Ubiquiti Inc Unifi Protect Application

CVE-2026-54408

A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi Protect Application to bypass authentication for data streaming.

EPSS: 0.003 (20.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L.

Affected products

Ubiquiti Inc Unifi Protect Application — versions 0
Ui Unifi_protect

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

support@hackerone.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-54408?: CVE-2026-54408 is a high-severity vulnerability in Ubiquiti Inc Unifi Protect Application, classified under Improper Access Control. CVSS score: 8.6/10. Published 2026-07-02.
How severe is CVE-2026-54408?: High severity. CVSS v3 base score is 8.6 out of 10.