CVE-2025-52665CWE-306

CVE-2025-52665

Critical · published October 31, 2025

CVSS v3.1
10.0
EPSS
41%
Percentile
98.7
In the wild
Unconfirmed
What it is

🚨 A misconfigured API in UniFi Access could let an intruder stroll right into your management network! 🔥 Think of it as a hotel where the front desk is accidentally left unlocked, allowing anyone to walk right in and access sensitive guest information. The door was meant to be secured, but a simple oversight has left it wide open! An attacker with access to the management network could exploit this vulnerability to gain unauthorized access to the UniFi Access application. This means they could potentially manipulate door access controls, view sensitive information, and cause chaos—imagine someone tampering with security settings in a building! Scary, right?

Put simply

Think of it as a hotel where the front desk is accidentally left unlocked, allowing anyone to walk right in and access sensitive guest information. The door was meant to be secured, but a simple oversight has left it wide open! This critical vulnerability arises from a missing authentication check in the management API of the UniFi Access application, introduced in Version 3.3.22, allowing attackers to exploit this misconfiguration if they have network access.

What to do

An attacker with access to the management network could exploit this vulnerability to gain unauthorized access to the UniFi Access application. This means they could potentially manipulate door access controls, view sensitive information, and cause chaos—imagine someone tampering with security settings in a building! Scary, right? To protect your system, immediately update your UniFi Access Application to Version 4.0.21 or later. It's crucial to manage your network access settings and review configurations to ensure no other vulnerabilities exist. 🛡️ You've got this! With a quick patch and some proactive measures, you can secure your environment like a pro! 💪💡

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.41089 · 98.7th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2025-10-31T04:15Z
Affected products (1)
ProductVersionsFixed in
ui/unifi_access≥ 3.3.22, < 4.0.214.0.21
References (1)
EPSS history
Timeline
  • 30 OCT 23:30Z
    A malicious actor with access to the management network could exploit a misconfiguration in UniFi’s door access application, UniFi Access, that exposed a…
    cvelistv5