CVE-2026-77536 - Vulnerability Details - OpenCVE

A malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in certain devices running UniFi OS to escalate privileges within such UniFi OS devices or instances.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

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.

Exploitation none

Automatable no

Technical Impact total

No data.

No data.

No data.

References

Link	Providers
https://community.ui.com/releases/Security-Advisory-Bulletin-067/fc4a3488-7c43-4628-8bab-f715e96dbfc9

History

Wed, 26 Aug 2026 13:30:00 +0000

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

Wed, 26 Aug 2026 10:45:00 +0000

Type	Values Removed	Values Added
Title		Improper Access Control in UniFi OS Enables Privilege Escalation

Wed, 26 Aug 2026 09:45:00 +0000

Type	Values Removed	Values Added
Description		A malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in certain devices running UniFi OS to escalate privileges within such UniFi OS devices or instances.
Weaknesses		CWE-284
References		https://community.ui.com/releases/Security-Advisory-Bulletin-067/fc4a3488-7c43-4628-8bab-f715e96dbfc9
Metrics		cvssV3_1 `{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}`

MITRE

Status: PUBLISHED

Assigner: Ubiquiti

Published: 2026-08-26T09:35:38.688Z

Updated: 2026-08-27T03:56:45.782Z

Reserved: 2026-08-20T20:32:30.112Z

Link: CVE-2026-77536

Vulnrichment

Updated: 2026-08-26T12:56:52.204Z

NVD

Status : Deferred

Published: 2026-08-26T10:16:41.417

Modified: 2026-08-28T18:49:15.340

Link: CVE-2026-77536

Redhat

No data.

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