What is the CVSS score of CVE-2020-9073?

CVE-2020-9073 has a CVSS 3.1 base score of 2.4 (Low). CVSS vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N. EPSS exploitation probability: 0.2%.

P20 Firmware CVE-2020-9073

LOW

Improper Authentication (CWE-287)

2020-05-15 psirt@huawei.com

Authentication Bypass Huawei P20 Firmware

2.4

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-287 OWASP Top 10:2025 A07:2025 - Authentication Failures ASVS 5.0 V6 - Authentication Authentication mechanism validation MITRE ATT&CK 2 techniques across 2 tactics: Defense Evasion, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 2.4 (LOW). Attack characteristics: physical attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived	An attacker could exploit this vulnerability to bypass authentication mechanisms to gain unauthorized access. No authentication is required to exploit this vulnerability.

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).

No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAI

Huawei P20 smartphones with versions earlier than 10.0.0.156(C00E156R1P4) have an improper authentication vulnerability. Rated low severity (CVSS 2.4), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. Huawei P20 smartphones with versions earlier than 10.0.0.156(C00E156R1P4) have an improper authentication vulnerability. The vulnerability is due to that when an user wants to do certain operation, the software insufficiently validate the user's identity. Attackers need to physically access the smartphone to exploit this vulnerability. Successful exploit could allow the attacker to bypass the limit of student mode function. Affected products include: Huawei P20 Firmware.

Severity by source

NVD PRIMARY 2.4 LOW

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

DescriptionNVD

Huawei P20 smartphones with versions earlier than 10.0.0.156(C00E156R1P4) have an improper authentication vulnerability. The vulnerability is due to that when an user wants to do certain operation, the software insufficiently validate the user's identity. Attackers need to physically access the smartphone to exploit this vulnerability. Successful exploit could allow the attacker to bypass the limit of student mode function.

Threat Intelligence Overview

EPSS Score

0.2%

Top 87% exploitable

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity LOW

CISA KEV No

Public POC No

EPSS 0.2%

Patch available No

Active threat No

Deciding rule

LOW severity (CVSS 0.1-3.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.