CVE-2020-8157

6.8 MEDIUM 0.4% exploit odds Fix listed

What it is

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).

At a glance

Exploitability: Can be exploited with physical access without logging in. High risk of data exposure, data tampering, service disruption.
Exploit odds: 0.4% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2020-05-02 16:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 03:25 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.4% in the next 30 days (EPSS).
Severity: 6.8 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2020-05-02 16:15 UTC
Last modified: 2026-06-17 03:25 UTC
Exploit probability: 0.4% · EPSS, next 30 days
Weakness: CWE-284 · Improper access control
Record status: Modified

Affected

Ui Unifi Cloud Key gen2 Firmware ≤ 1.1.10
Ui Unifi Cloud Key gen2 Plus Firmware ≤ 1.1.10

Attack profile CVSS 3.1 · 6.8

Attack vector: Physical
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2020-8157.md and follow it. Check whether this project is affected by CVE-2020-8157. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record