CWE
119 787
Advisory Published
Updated

CVE-2021-39990: Buffer Overflow

First published: Mon Jan 03 2022(Updated: )

The screen lock module has a Stack-based Buffer Overflow vulnerability.Successful exploitation of this vulnerability may affect user experience.

Credit: psirt@huawei.com

Affected SoftwareAffected VersionHow to fix
Huawei HarmonyOS<2.0

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Frequently Asked Questions

  • What is the severity of CVE-2021-39990?

    CVE-2021-39990 is classified as a high severity due to its potential to exploit a stack-based buffer overflow in the screen lock module.

  • How do I fix CVE-2021-39990?

    To fix CVE-2021-39990, update the affected Huawei HarmonyOS version to a version greater than 2.0.

  • Which software versions are impacted by CVE-2021-39990?

    CVE-2021-39990 affects Huawei HarmonyOS versions prior to 2.0.

  • What are the potential consequences of exploiting CVE-2021-39990?

    Exploitation of CVE-2021-39990 may negatively impact user experience by causing unresponsive behavior.

  • Is there any known public exploit for CVE-2021-39990?

    As of now, there are no publicly disclosed exploits specifically targeting CVE-2021-39990.

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