This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy

Security Advisory - Digital Balance Bypass Vulnerability in Huawei Smart Phones

  • SA No:huawei-sa-20200122-01-digitalbalance
  • Initial Release Date: Jan 22, 2020
  • Last Release Date: Jan 22, 2020

There is a digital balance bypass vulnerability in some Huawei smart phones. When re-configuring the mobile phone at the digital balance mode, an attacker can perform some operations to bypass the startup wizard, and then open some switch. As a result, the digital balance function is bypassed. (Vulnerability ID: HWPSIRT-2019-08004)
This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2020-1872.
Huawei has released software updates to fix this vulnerability. This advisory is available at the following link:
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200122-01-digitalbalance-en

Product Name

Affected Version

Resolved Product and Version

HUAWEI P10 Plus

Versions earlier than 9.1.0.201(C01E75R1P12T8)

9.1.0.201(C01E75R1P12T8)

Versions earlier than 9.1.0.252(C185E2R1P9T8)

9.1.0.252(C185E2R1P9T8)

Versions earlier than 9.1.0.252(C432E4R1P9T8)

9.1.0.252(C432E4R1P9T8)

Versions earlier than 9.1.0.255(C576E6R1P8T8)

9.1.0.255(C576E6R1P8T8)


An attacker can modify the configuration of the smart phone and cause the  digital balance function bypass.


The vulnerability classification has been performed by using the CVSSv3 scoring system (http://www.first.org/cvss/specification-document).

Base Score: 4.6 (AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)

Temporal Score: 4.3 (E:F/RL:O/RC:C)

Overall Score: 4.3


This vulnerability can be exploited only when the following conditions are present:

Attacker gets the smart phone device.

Vulnerability details:

When re-configuring the mobile phone at the digital balance mode, an attacker can perform some operations to bypass the startup wizard, and then open some switch. As a result, the digital balance function is bypassed.


The product that supports automatic update will receive a system update prompt. You can install the update to fix the vulnerability.

This vulnerability was discovered by Huawei internal tester.


2020-01-22 V1.0 INITIAL


Huawei adheres to protecting the ultimate interests of users with best efforts and the principle of responsible disclosure and deal with product security issues through our response mechanism.

To enjoy Huawei PSIRT services and obtain Huawei product vulnerability information, please visit http://www.huawei.com/en/psirt.

To report a security vulnerability in Huawei products and solutions, please send it to PSIRT@huawei.com. For details, please visit http://www.huawei.com/en/psirt/report-vulnerabilities.

This document is provided on an "AS IS" basis and does not imply any kind of guarantee or warranty, either express or implied, including the warranties of merchantability or fitness for a particular purpose. In no event shall Huawei or any of its directly or indirectly controlled subsidiaries or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages. Your use of the document, by whatsoever means, will be totally at your own risk. Huawei is entitled to amend or update this document from time to time.