Review reviewCritical

CVE-2026-55116

Ubiquiti Inc Dream Machines, Enterprise Fortress Gateway, Dream Wall

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.

CVSS
9.8
EPSS
0.41%
34.0% percentile
CISA KEV
Not listed
Published
2026.07.03
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.41%
Technical severityCVSS 9.8

Vulnerability overview

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.

Affected product and versions

Product
Ubiquiti Inc Dream Machines, Enterprise Fortress Gateway, Dream Wall
Affected versions
< 3.4.20
Fixed versions
3.4.20

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Ubiquiti Inc Dream Machines, Enterprise Fortress Gateway, Dream Wall and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-284
CVE-2026-55116 — Ubiquiti Inc Dream Machines, Enterprise Fortress Gateway, Dream Wall | SECUFOCUS NOW