CVE-2026-54400: unifi access before 4.2.29 (exclusive); +1 more affected products

CVE-2026-54400. CVSS 3.1 base score 9.1 (CRITICAL, Vendor/CNA). EPSS 0.00524 (percentile 0.44201), scored 25-Oct-2026.

Affected technology

unifi access · before 4.2.29 (exclusive)
ui

UniFi Access Application · 0 to before 4.2.29
Ubiquiti Inc

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · High privileges required · No user interaction required

What an attacker can do

The source reports that an attacker could gain higher privileges. Vendor/CNA’s CVSS 3.1 assessment (base score 9.1/10) rates confidentiality, integrity and availability impact as high.

Published 25-Oct-2026 21:45 UTC

CWE: CWE-284
CCR priority: 36.5 /100 (P4)
CVSS 3.1: 9.1 /10 · CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H · Vendor/CNA
EPSS: 0.00524 · percentile 0.44201 · 2026-10-25
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-25 21:44:36.062275+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-54400.html