7.8
CWE
191
Advisory Published
Updated

CVE-2021-40054: Integer Underflow

First published: Mon Mar 07 2022(Updated: )

There is an integer underflow vulnerability in the atcmdserver module. Successful exploitation of this vulnerability may affect integrity.

Credit: psirt@huawei.com

Affected SoftwareAffected VersionHow to fix
Huawei EMUI=10.0.0
Huawei EMUI=10.1.0
Huawei EMUI=10.1.1
Huawei EMUI=11.0.0
Huawei EMUI=11.0.1
Huawei EMUI=12.0.0
Huawei Magic UI=3.0.0
Huawei Magic UI=3.1.0
Huawei Magic UI=3.1.1
Huawei Magic UI=4.0.0

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Frequently Asked Questions

  • What is the severity of CVE-2021-40054?

    CVE-2021-40054 is considered a high severity vulnerability due to the potential impact on integrity.

  • How do I fix CVE-2021-40054?

    To fix CVE-2021-40054, update your Huawei device to the latest software version that addresses this vulnerability.

  • Which devices are affected by CVE-2021-40054?

    CVE-2021-40054 affects multiple versions of Huawei Emui and Magic UI, including Emui versions 10.0.0 to 12.0.1 and Magic UI versions 3.0.0 to 4.0.0.

  • What type of vulnerability is CVE-2021-40054?

    CVE-2021-40054 is classified as an integer underflow vulnerability within the atcmdserver module.

  • What could happen if CVE-2021-40054 is exploited?

    Exploitation of CVE-2021-40054 may lead to integrity issues on the affected devices.

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