CVE-2021-46840: Critical severity emui 5.0 vulnerability

Published Oct 14, 2022
·
Updated

The HWKEYMASTER module has an out-of-bounds access vulnerability in parameter set verification.Successful exploitation of this vulnerability may cause malicious construction of data, which results in out-of-bounds access.

Affected Software

3 affected components
Huawei Emui=11.0.1
Huawei Emui=12.0.0
Huawei Harmonyos=2.0

Event History

Oct 14, 2022
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
DescriptionWeakness

Frequently Asked Questions

1

What is the severity of CVE-2021-46840?

CVE-2021-46840 is considered a critical vulnerability due to its potential for causing out-of-bounds access.

2

How do I fix CVE-2021-46840?

To fix CVE-2021-46840, users should update their Huawei devices to the latest firmware versions that address this vulnerability.

3

Which devices are affected by CVE-2021-46840?

CVE-2021-46840 affects Huawei devices running EMUI 11.0.1, EMUI 12.0.0, and HarmonyOS 2.0.

4

What happens if CVE-2021-46840 is exploited?

Exploitation of CVE-2021-46840 can lead to unauthorized access and manipulation of sensitive data.

5

What is the nature of the vulnerability described by CVE-2021-46840?

CVE-2021-46840 involves an out-of-bounds access vulnerability in the HW_KEYMASTER module during parameter set verification.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203