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Security Advisory - App Lock Bypass Vulnerability in Huawei Mobile Phones

  • SA No:huawei-sa-20171019-01-smartphone
  • Initial Release Date: Oct 19, 2017
  • Last Release Date: Oct 19, 2017

App Lock is a function provided by the Phone Manager app to prevent unauthorized use of apps on mobile phones. Some Huawei mobile phones have an App Lock bypass vulnerability. An attacker could perform specific operations to bypass the App Lock to use apps on a target mobile phone. (Vulnerability ID: HWPSIRT-2017-09148)
This vulnerability has been assigned a CVE ID: CVE-2017-8166.
Huawei has released software updates to fix this vulnerability. This advisory is available at the following link:

Product Name

Affected Version

Resolved Product and Version

Honor V9

The versions before Duke-AL20C00B195


Successful exploit could allow the attacker to bypass the App Lock function to use apps on the target mobile phone.

The vulnerability classification has been performed by using the CVSSv3 scoring system (

Base Score: 6.1 (AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N)
Temporal Score: 5.7 (E:F/RL:O/RC:C)
This vulnerability can be exploited only when the following conditions are present:
The attacker gets the smartphone device.
Vulnerability details:
An attacker could perform specific operations to bypass the App Lock to use apps on a target mobile phone temporarily.

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 external security researcher.

2017-10-19 V1.0 INITIAL

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