What is CVE-2026-54405?

CVE-2026-54405 is a high-severity vulnerability in Ubiquiti Inc Unifi Network Application, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2026-07-02.

How severe is CVE-2026-54405?

High severity. CVSS v3 base score is 7.5 out of 10.

Improper input validation in Ubiquiti Inc Unifi Network Application

CVE-2026-54405

A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi Network Application to execute a Denial of Service (DoS) attack on the application.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Ubiquiti Inc Unifi Network Application — versions 0
Ui Unifi_network_application

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

support@hackerone.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-54405?: CVE-2026-54405 is a high-severity vulnerability in Ubiquiti Inc Unifi Network Application, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2026-07-02.
How severe is CVE-2026-54405?: High severity. CVSS v3 base score is 7.5 out of 10.