CVE-2026-33000 CRITICAL

CVE-2026-33000

Vendor Ubiquiti Inc
Product UniFi OS Server
Weakness CWE-20 · Input validation
Published May 22, 2026
Last update May 23, 2026

CVSS base score

9.1/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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

Key dates

02Disclosure timeline

May 22, 2026 CVE published
May 23, 2026 Record updated