CVE-2021-40040

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

Vulnerability of writing data to an arbitrary address in the HW_KEYMASTER module. Successful exploitation of this vulnerability may affect confidentiality.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected software

Vendor	Product	Versions
n/a	HarmonyOS;EMUI;Magic UI	HarmonyOS 2.0; EMUI 11.0.0,EMUI 10.1.1,EMUI 10.1.0,EMUI 10.0.0; Magic UI 4.0.0,Magic UI 3.1.1,Magic UI 3.1.0,Magic UI 3.0.0

References

https://consumer.huawei.com/en/support/bulletin/2022/8/Vendor Advisory
https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202209-0000001392278845Vendor Advisory
https://consumer.huawei.com/en/support/bulletin/2022/8/Vendor Advisory
https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202209-0000001392278845Vendor Advisory

Timeline

Published: Aug 10, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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