What is CVE-2026-21635?

CVE-2026-21635 is a medium-severity vulnerability in Ubiquiti Inc Unifi Connect Ev Station Lite, classified under Improper Access Control. CVSS score: 5.3/10. Published 2026-01-05.

How severe is CVE-2026-21635?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Ubiquiti Inc Unifi Connect Ev Station Lite

CVE-2026-21635

An Improper Access Control could allow a malicious actor in Wi-Fi range to the EV Station Lite (v1.5.2 and earlier) to use WiFi AutoLink feature on a device that was only adopted via Ethernet.

Published 2026-01-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.001 (3.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 3.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000

Affected products

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

community.ui.com/releases/Security-Advisory-Bulletin-059/0c0b7f7a-68b7-41b9-987… (Vendor Advisory)

Frequently asked questions

What is CVE-2026-21635?: CVE-2026-21635 is a medium-severity vulnerability in Ubiquiti Inc Unifi Connect Ev Station Lite, classified under Improper Access Control. CVSS score: 5.3/10. Published 2026-01-05.
How severe is CVE-2026-21635?: Medium severity. CVSS v3 base score is 5.3 out of 10.