A malicious actor with access to the network and high privileges could exploit an Improper Access Control vulnerability found in UniFi Access Application to escalate privileges on the host device.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

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 0.00257.

Exploitation none

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Ubiquiti Inc UniFi Access Application unaffected
Version Status Constraints
0 affected < 4.2.29

No data.

No data.

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

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

Sat, 04 Jul 2026 05:30:00 +0000

Type Values Removed Values Added
Title Improper Access Control in UniFi Access Application Enables Elevation of Privileges

Fri, 03 Jul 2026 21:15:00 +0000

Type Values Removed Values Added
Title Privilege Escalation via Improper Access Control in UniFi Access Application

Fri, 03 Jul 2026 03:45:00 +0000

Type Values Removed Values Added
Title Privilege Escalation via Improper Access Control in UniFi Access Application

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 high privileges could exploit an Improper Access Control vulnerability found in UniFi Access Application to escalate privileges on the host device.
Weaknesses CWE-284
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published:

Updated: 2026-07-02T16:11:02.050Z

Reserved: 2026-06-13T15:00:00.604Z

Link: CVE-2026-54400

cve-icon Vulnrichment

Updated: 2026-07-02T16:10:57.895Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-04T05:15:05Z

Weaknesses