A malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UniFi OS Server to execute a Command Injection on the host device.
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

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 11:45:00 +0000

Type Values Removed Values Added
Title Command Injection Vulnerability in UniFi OS Server
First Time appeared Ubiquiti
Ubiquiti unifi Os Server
Vendors & Products Ubiquiti
Ubiquiti unifi Os Server

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

Type Values Removed Values Added
Description A malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UniFi OS Server to execute a Command Injection on the host device.
Weaknesses CWE-20
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: Ubiquiti

Published:

Updated: 2026-08-26T12:54:41.316Z

Reserved: 2026-08-20T20:32:30.113Z

Link: CVE-2026-77539

cve-icon Vulnrichment

Updated: 2026-08-26T12:54:37.824Z

cve-icon NVD

Status : Received

Published: 2026-08-26T10:16:41.783

Modified: 2026-08-26T14:17:14.577

Link: CVE-2026-77539

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-26T11:30:05Z

Weaknesses