CVE-2020-8157

Name: CVE-2020-8157
Creator: NVD / NIST
Published: 2020-05-02T16:15:11.62+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.8/10EPSS 0.34%

Last modified Jun 17, 2026

CVE-2020-8157 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. 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).. EPSS estimates a 0.34% chance of exploitation in the next 30 days.

Description

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).

Metrics

CVSS 3.1

6.8/10

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.34%

26.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-284

Affected Software

Vendor	Product	Versions
Ui	Unifi Cloud Key Gen2 Firmware	<= 1.1.10
Ui	Unifi Cloud Key Gen2 Plus Firmware	<= 1.1.10

References

Timeline

Published: May 2, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is 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).

How severe is CVE-2020-8157?

CVE-2020-8157 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.34% probability of exploitation in the next 30 days.

How do I fix CVE-2020-8157?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-8157?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST