CVE-2026-77547

Command Injection via Improper Input Validation in UniFi Access Application

Published Aug 26, 2026 CVSS 3.1 · 9.9 Critical EPSS 1.4% KEV · Not listed
Description
A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in UniFi Access Application to execute a Command Injection on the host device.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Ui
Ui unifi Access Application
Vendors & Products Ui
Ui unifi Access Application
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Command Injection via Improper Input Validation in UniFi Access Application
Type Values Removed Values Added
Description A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in UniFi Access Application to execute a Command Injection on the host device.
Weaknesses CWE-20
References
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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Ubiquiti
Published
Updated
Aug 26, 2026, 1:18 PM
Reserved
Aug 20, 2026, 8:32 PM
Status
Deferred
Published
Aug 26, 2026, 11:16 AM
Modified
Aug 28, 2026, 6:49 PM