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P20 Firmware CVE-2019-5283

MEDIUM
2019-06-04 psirt@huawei.com
4.6
CVSS 3.0 · NVD
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Vulnerability Assessment

Impact

CVSS score of 4.6 (MEDIUM). Attack characteristics: physical attack vector, low complexity, no privileges required, no user interaction not required.

Exploit ScenarioDerived

Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAI

There is Factory Reset Protection (FRP) bypass security vulnerability in P20 Huawei smart phones versions earlier than Emily-AL00A 9.0.0.167 (C00E81R1P21T8). Rated medium severity (CVSS 4.6), 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. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

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

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Technical ContextAI · show details

There is Factory Reset Protection (FRP) bypass security vulnerability in P20 Huawei smart phones versions earlier than Emily-AL00A 9.0.0.167 (C00E81R1P21T8). When re-configuring the mobile phone using the factory reset protection (FRP) function, an attacker can login the Talkback mode and can perform some operations to access the setting page. As a result, the FRP function is bypassed. Affected products include: Huawei P20 Firmware.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 4.6 MEDIUM
AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/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
High
Availability
None

DescriptionNVD

There is Factory Reset Protection (FRP) bypass security vulnerability in P20 Huawei smart phones versions earlier than Emily-AL00A 9.0.0.167 (C00E81R1P21T8). When re-configuring the mobile phone using the factory reset protection (FRP) function, an attacker can login the Talkback mode and can perform some operations to access the setting page. As a result, the FRP function is bypassed.

Threat Intelligence Overview

EPSS Score
0.2%
Top 86% exploitable
Data Quality
2 sources
Confidence: Low

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 0.2%
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
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

23
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +23
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)NVD

cpe:2.3:o:huawei:p20_firmware:*:*:*:*:*:*:*:*
CVE-2019-2215 HIGH POC
7.8 Oct 11

A use-after-free in binder.c allows an elevation of privilege from an application to the Linux Kernel. Rated high severi

CVE-2020-0022 HIGH POC
8.8 Feb 13

In reassemble_and_dispatch of packet_fragmenter.cc, there is possible out of bounds write due to an incorrect bounds cal

CVE-2019-9506 HIGH
8.1 Aug 14

The Bluetooth BR/EDR specification up to and including version 5.1 permits sufficiently low encryption key length and do

CVE-2018-7987 MEDIUM
5.9 Dec 04

There is an out-of-bounds write vulnerability on Huawei P20 smartphones with versions before 8.1.0.171(C00). Rated mediu

CVE-2019-5211 MEDIUM
5.7 Nov 29

The Huawei Share function of P20 phones with versions earlier than Emily-L29C 9.1.0.311 has an improper file management

CVE-2020-9239 MEDIUM
5.5 Sep 11

Huawei smartphones BLA-A09 versions 8.0.0.123(C212),versions earlier than 8.0.0.123(C567),versions earlier than 8.0.0.12

CVE-2019-5212 MEDIUM
5.5 Nov 29

There is an improper access control vulnerability in Huawei Share. Rated medium severity (CVSS 5.5), this vulnerability

CVE-2019-5230 MEDIUM
5.5 Nov 13

P20 Pro, P20, Mate RS smartphones with versions earlier than Charlotte-AL00A 9.1.0.321(C00E320R1P1T8), versions earlier

CVE-2019-5306 MEDIUM
4.6 Jun 04

There is a Factory Reset Protection (FRP) bypass security vulnerability in P20 Huawei smart phones versions before Emily

CVE-2020-9073 LOW
2.4 May 15

Huawei P20 smartphones with versions earlier than 10.0.0.156(C00E156R1P4) have an improper authentication vulnerability.

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