Track vulnerabilities like this one. Sign up free to get alerted when software you use is affected.

CVE-2020-8157: UniFi Cloud Key firmware <= v1.1.10 for Cloud Key gen2 and Cloud Key gen2 Plus contains a vulnerability that allows unrestricted root access through the serial interface (UART).

CVE-2020-8157 · published 6 years ago

Summary

UniFi Cloud Key firmware <= v1.1.10 for Cloud Key gen2 and Cloud Key gen2 Plus contains a vulnerability that allows unrestricted root access through the serial interface (UART).

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software

Vendor	Product	Affected versions
ui	unifi_cloud_key_gen2_firmware	<= 1.1.10 `cpe:2.3:o:ui:unifi_cloud_key_gen2_firmware::::::::`
ui	unifi_cloud_key_gen2_plus_firmware	<= 1.1.10 `cpe:2.3:o:ui:unifi_cloud_key_gen2_plus_firmware::::::::`

Original advisory text

UniFi Cloud Key firmware <= v1.1.10 for Cloud Key gen2 and Cloud Key gen2 Plus contains a vulnerability that allows unrestricted root access through the serial interface (UART).

References

https://community.ui.com/releases/Security-advisory-bulletin-008-008/5f66ca4c-10... Vendor Advisory
https://community.ui.com/releases/UniFi-Cloud-Key-Firmware-1-1-11/a24e55e1-6d90-... Vendor Advisory

Fix within

Internet-facing 14 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit (estimated)
Gives an attacker full control (estimated)

Severity

6.8 Medium

Exploitation

<1% chance of attack within 30 days

Type

CWE-284Improper Access Control

Timeline

Published2 May 2020

Updated4 Nov 2026

First seen29 Sep 2026

Sources

CVE-2020-8157 · NVD

Track software like this

Free during beta