CVE-2026-55116

CRITICAL

Ubiquiti INC Dream Machines - Improper Access Control

Title source: rule

Description

A malicious actor with access to the network and under certain network configurations could exploit an Improper Access Control vulnerability found in certain devices running UniFi OS to make unauthorized changes to such UniFi OS devices.

References (1)

Core 1

Core References

https://community.ui.com/releases/Security-Advisory-Bulletin-066-066/984eceb3-49c8-4227-942d-671c289b3afc

Scores

CVSS v3 9.0

EPSS 0.0022

EPSS Percentile 12.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-284

Status published

Products (7)

Ubiquiti Inc/Cloud Gateways < 5.1.19

Ubiquiti Inc/Dream Machines < 5.1.19

Ubiquiti Inc/Dream Routers < 5.1.19

Ubiquiti Inc/Dream Wall < 5.1.19

Ubiquiti Inc/Enterprise Firewall Core < 5.1.19

Ubiquiti Inc/Enterprise Fortress Gateway < 5.1.19

Ubiquiti Inc/Express 7 < 5.1.19

Published Jul 02, 2026

Tracked Since Jul 02, 2026