CVE-2026-34909

Ubiquiti · Published May 22, 2026

10.0

CVSS v3.1

CRITICAL

CISA KEV — Federal agencies must patch by deadline

Actively exploited in the wild

Patch availableGet patch

Description

A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to access files on the underlying system that could be manipulated to access an underlying account.

Affected Products

Unifi OS Server < 5.0.8
Unifi Cloud Gateway Industrial Firmware < 5.1.12
Unifi Dream Machine Firmware < 5.1.12
Unifi Dream Machine PRO Firmware < 5.1.12

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H