What is the severity of CVE-2021-40020?

CVE-2021-40020 is classified as a medium severity vulnerability due to potential impacts on service confidentiality.

How do I fix CVE-2021-40020?

To fix CVE-2021-40020, ensure that your device software is updated to the latest version provided by Huawei.

What devices are affected by CVE-2021-40020?

CVE-2021-40020 affects various versions of Huawei EMUI and Magic UI, specifically including versions 10.0.0, 10.1.0, 10.1.1, 11.0.0, and 3.0.0 to 4.0.0.

What type of vulnerability is CVE-2021-40020?

CVE-2021-40020 is characterized as an out-of-bounds array read vulnerability found in the security storage module.

What could happen if CVE-2021-40020 is exploited?

Successful exploitation of CVE-2021-40020 may lead to unauthorized access, affecting the confidentiality of services.

Vulnerability/
CVE-2021-40020

high

7.5

CWE

125

7/1/2022

4/8/2024

CVE-2021-40020

First published: Fri Jan 07 2022(Updated: )

There is an Out-of-bounds array read vulnerability in the security storage module in smartphones. Successful exploitation of this vulnerability may affect service confidentiality.

Credit: psirt@huawei.com

Affected Software	Affected Version	How to fix
Huawei EMUI	=10.0.0
Huawei EMUI	=10.1.0
Huawei EMUI	=10.1.1
Huawei EMUI	=11.0.0
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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Reference Links

https://consumer.huawei.com/en/support/bulletin/2022/1/

Frequently Asked Questions

What is the severity of CVE-2021-40020?
CVE-2021-40020 is classified as a medium severity vulnerability due to potential impacts on service confidentiality.
How do I fix CVE-2021-40020?
To fix CVE-2021-40020, ensure that your device software is updated to the latest version provided by Huawei.
What devices are affected by CVE-2021-40020?
CVE-2021-40020 affects various versions of Huawei EMUI and Magic UI, specifically including versions 10.0.0, 10.1.0, 10.1.1, 11.0.0, and 3.0.0 to 4.0.0.
What type of vulnerability is CVE-2021-40020?
CVE-2021-40020 is characterized as an out-of-bounds array read vulnerability found in the security storage module.
What could happen if CVE-2021-40020 is exploited?
Successful exploitation of CVE-2021-40020 may lead to unauthorized access, affecting the confidentiality of services.

agent/type
agent/softwarecombine
collector/mitre-cve
source/MITRE
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agent/weakness
agent/severity
agent/author
agent/references
agent/description
agent/first-publish-date
agent/event
agent/source
agent/tags
collector/nvd-index
agent/software-canonical-lookup-request
vendor/huawei
canonical/huawei emui
version/huawei emui/10.0.0
version/huawei emui/10.1.0
version/huawei emui/10.1.1
version/huawei emui/11.0.0
canonical/huawei magic ui
version/huawei magic ui/3.0.0
version/huawei magic ui/3.1.0
version/huawei magic ui/3.1.1
version/huawei magic ui/4.0.0

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