CVE-2026-55116

Critical · 9.0

CVSS

9.0

EPSS

—

Published

Jul 2, 2026

CISA due date

—

The record

A malicious actor with access to the network and under certain network configurations could exploit an Improper Access Control vulnerability found in certain devices running UniFi OS to make unauthorized changes to such UniFi OS devices.

Affected packages

Ecosystem	Package	Introduced	Fixed