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Security Advisory - Logic Vulnerability in Huawei WATCH Kid Product

  • SA No:huawei-sa-20210630-01-logic
  • Initial Release Date: 2021-06-23
  • Last Release Date: 2021-06-23

There is a logic vulnerability in Huawei WATCH Kid product. An unauthenticated attacker could perform specific operations to exploit this vulnerability. Due to insufficient security design, successful exploit could allow an attacker to add users to be friends without prompting in the target device. (Vulnerability ID: HWPSIRT-2021-57713)

This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2021-22449.

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-20210630-01-logic-en


Product Name

Affected Version

Resolved Product and Version

Elf-G10HN

1.0.0.608

1.0.0.612



Successful exploit could allow an attacker to add users to be friends without prompting in the target device.

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

Base Score: 8.3 (AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L)

Temporal Score: 7.7 (E:F/RL:O/RC:C)

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

Attackers can get access the target device network.

Vulnerability details:

There is a logic vulnerability in Huawei WATCH Kid product. An unauthenticated attacker could perform specific operations to exploit this vulnerability. Due to insufficient security design, successful exploit could allow an attacker to add users to be friends without prompting in the target device.


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 users.

2021-06-30 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.

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