What is CVE-2020-8148?

CVE-2020-8148 is a medium-severity vulnerability in Ui Cloud Key Gen2, classified under Improper Authentication. CVSS score: 5.3/10. Published 2020-04-13.

How severe is CVE-2020-8148?

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

Auth bypass in Ui Cloud Key Gen2

CVE-2020-8148

UniFi Cloud Key firmware < 1.1.6 contains a vulnerability that enables an attacker being able to change a device hostname by sending a malicious API request. This affects Cloud Key gen2 and Cloud Key gen2 Plus.

Vulnerability class: Broken Authentication

Published 2020-04-13 · last modified 2026-06-17.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.011 (63.0th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Ui Cloud Key Gen2
Ui Cloud Key Gen2 Plus
Unifi Cloud Key Gen2 — versions Fixed in firmware >= 1.1.10

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

community.ui.com/releases/Security-advisory-bulletin-007-007/eb639fa0-68ad-4bf5… (Patch, Vendor Advisory)
hackerone.com/reports/802079 (Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2020-8148?: CVE-2020-8148 is a medium-severity vulnerability in Ui Cloud Key Gen2, classified under Improper Authentication. CVSS score: 5.3/10. Published 2020-04-13.
How severe is CVE-2020-8148?: Medium severity. CVSS v3 base score is 5.3 out of 10.