CWE
843
Advisory Published
Updated

CVE-2021-40037

First published: Fri Jan 07 2022(Updated: )

There is a Vulnerability of accessing resources using an incompatible type (type confusion) in the MPTCP subsystem in smartphones. Successful exploitation of this vulnerability may cause the system to crash and restart.

Credit: psirt@huawei.com

Affected SoftwareAffected VersionHow to fix
Huawei HarmonyOS<2.0
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-2021-40037?

    CVE-2021-40037 is classified with a high severity, as it may lead to system crashes and restarts.

  • How do I fix CVE-2021-40037?

    To fix CVE-2021-40037, users should ensure their Huawei devices are updated to the latest patched versions of HarmonyOS or EMUI.

  • Which devices are affected by CVE-2021-40037?

    CVE-2021-40037 affects specific versions of Huawei HarmonyOS, EMUI, and Magic UI running on various smartphones.

  • What are the potential consequences of CVE-2021-40037?

    The exploitation of CVE-2021-40037 may result in a system crash, leading to unexpected reboots and potential data loss.

  • Is there a workaround for CVE-2021-40037?

    Currently, the best workaround for CVE-2021-40037 is to apply the latest software updates provided by Huawei.

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