Improper input validation in Ubiquiti Inc Cloud Gateways
CVE-2026-54402
A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in UniFi OS to execute a Command Injection on the host device.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Ubiquiti Inc Cloud Gateways — versions 0
- Ubiquiti Inc Cloud Keys — versions 0
- Ubiquiti Inc Dream Machines — versions 0
- Ubiquiti Inc Dream Routers — versions 0
- Ubiquiti Inc Dream Wall — versions 0
- Ubiquiti Inc Enterprise Firewall Core — versions 0
- Ubiquiti Inc Enterprise Fortress Gateway — versions 0
- Ubiquiti Inc Enterprise Video Recorders — versions 0
- Ubiquiti Inc Express 7 — versions 0
- Ubiquiti Inc Network Attached Storage — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-54402?
- CVE-2026-54402 is a critical-severity vulnerability in Ubiquiti Inc Cloud Gateways, classified under Improper Input Validation. CVSS score: 9.9/10. Published 2026-07-02.
- How severe is CVE-2026-54402?
- Critical severity. CVSS v3 base score is 9.9 out of 10.