CVE-2026-55116 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0022.

Exploitation none

Automatable no

Technical Impact total

No data.

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors	Products

References

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

History

Fri, 03 Jul 2026 06:30:00 +0000

Type	Values Removed	Values Added
Title	Improper Access Control Allowing Unauthorized Changes to UniFi OS Devices

Thu, 02 Jul 2026 23:30:00 +0000

Type	Values Removed	Values Added
Title		Improper Access Control Allowing Unauthorized Changes to UniFi OS Devices

Thu, 02 Jul 2026 16:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Thu, 02 Jul 2026 15:15:00 +0000

Type	Values Removed	Values Added
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.
Weaknesses		CWE-284
References		https://community.ui.com/releases/Security-Advisory-Bulletin-066-066/984eceb3-49c8-4227-942d-671c289b3afc
Metrics		cvssV3_1 `{'score': 9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H'}`

MITRE

Status: PUBLISHED

Assigner: hackerone

Published: 2026-07-02T14:50:48.820Z

Updated: 2026-07-02T15:51:11.890Z

Reserved: 2026-06-16T15:00:01.614Z

Link: CVE-2026-55116

Vulnrichment

Updated: 2026-07-02T15:41:24.588Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-07-03T13:15:12Z

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