CVE-2026-54403EPSS p46.9%

CVE-2026-54403CVE-2026-54403

ui / unifi_os_server

Description

A malicious actor with access to the network could exploit a Path Traversal vulnerability found in certain devices running UniFi OS to bypass authentication of such UniFi OS devices or instances.

Scoring

CVSS 8.6 ()
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
EPSS0.62% probability of exploitation · percentile 46.9% · 2026-08-16T12:03:43Z
Last modified2026-07-10
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.