What is the CVSS score of CVE-2020-8157?

CVE-2020-8157 has a CVSS 3.1 base score of 6.8 (Medium). CVSS vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Unifi Cloud Key Gen2 Firmware CVE-2020-8157

MEDIUM

Improper Access Control (CWE-284)

2020-05-02 support@hackerone.com

Ubiquiti Authentication Bypass Unifi Cloud Key Gen2 Firmware Unifi Cloud Key Gen2 Plus Firmware

6.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.8 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

May 02, 2020 - 16:15 nvd

MEDIUM 6.8

DescriptionNVD

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).

AnalysisAI

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). Rated medium severity (CVSS 6.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-284. 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). Affected products include: Ui Unifi Cloud Key Gen2 Firmware, Ui Unifi Cloud Key Gen2 Plus Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.