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.
History

Wed, 26 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Wed, 26 Aug 2026 12:45:00 +0000

Type Values Removed Values Added
Title Command Injection via Improper Input Validation in UniFi OS Server

Wed, 26 Aug 2026 12:15:00 +0000

Type Values Removed Values Added
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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Ubiquiti

Published:

Updated: 2026-08-27T03:56:53.322Z

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

Link: CVE-2026-77540

cve-icon Vulnrichment

Updated: 2026-08-26T13:31:36.854Z

cve-icon NVD

Status : Deferred

Published: 2026-08-26T10:16:41.920

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

Link: CVE-2026-77540

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-26T12:30:05Z