What is the CVSS score of CVE-2020-9104?

CVE-2020-9104 has a CVSS 3.1 base score of 4.3 (Medium). CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L. EPSS exploitation probability: 0.3%.

P30 Firmware CVE-2020-9104

MEDIUM

Memory Leak (CWE-401)

2020-08-21 psirt@huawei.com

Denial Of Service Huawei P30 Firmware

4.3

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-401 ASVS 5.0 V15 - Secure Coding and Architecture Resource cleanup, leak prevention
Impact	CVSS score of 4.3 (MEDIUM). Attack characteristics: adjacent network attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived	An attacker could exploit this vulnerability to exhaust available memory leading to denial of service. No authentication is required to exploit this vulnerability.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAI

HUAWEI P30 smartphones with Versions earlier than 10.1.0.123(C431E22R2P5),Versions earlier than 10.1.0.123(C432E22R2P5),Versions earlier than 10.1.0.126(C10E7R5P1),Versions earlier than. Rated medium severity (CVSS 4.3), 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. Ensure all allocated memory is properly freed. Use RAII patterns or garbage-collected languages.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified as Memory Leak (CWE-401), which allows attackers to exhaust available memory leading to denial of service. HUAWEI P30 smartphones with Versions earlier than 10.1.0.123(C431E22R2P5),Versions earlier than 10.1.0.123(C432E22R2P5),Versions earlier than 10.1.0.126(C10E7R5P1),Versions earlier than 10.1.0.126(C185E4R7P1),Versions earlier than 10.1.0.126(C461E7R3P1),Versions earlier than 10.1.0.126(C605E19R1P3),Versions earlier than 10.1.0.126(C636E7R3P4),Versions earlier than 10.1.0.128(C635E3R2P4),Versions earlier than 10.1.0.160(C00E160R2P11),Versions earlier than 10.1.0.160(C01E160R2P11) have a denial of service vulnerability. In specific scenario, due to the improper resource management and memory leak of some feature, the attacker could exploit this vulnerability to cause the device reset. Affected products include: Huawei P30 Firmware.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 4.3 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

DescriptionNVD

HUAWEI P30 smartphones with Versions earlier than 10.1.0.123(C431E22R2P5),Versions earlier than 10.1.0.123(C432E22R2P5),Versions earlier than 10.1.0.126(C10E7R5P1),Versions earlier than 10.1.0.126(C185E4R7P1),Versions earlier than 10.1.0.126(C461E7R3P1),Versions earlier than 10.1.0.126(C605E19R1P3),Versions earlier than 10.1.0.126(C636E7R3P4),Versions earlier than 10.1.0.128(C635E3R2P4),Versions earlier than 10.1.0.160(C00E160R2P11),Versions earlier than 10.1.0.160(C01E160R2P11) have a denial of service vulnerability. In specific scenario, due to the improper resource management and memory leak of some feature, the attacker could exploit this vulnerability to cause the device reset.

Threat Intelligence Overview

EPSS Score

0.3%

Top 76% 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 MEDIUM

CISA KEV No

Public POC No

EPSS 0.3%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

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.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Controlled

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +22

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)NVD

cpe:2.3:o:huawei:p30_firmware:*:*:*:*:*:*:*:*

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References

Advisories & patches

ADVISORY https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200819-01-smartphonedos-en

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GitHub PoC

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