CVE-2021-40040

HIGH

Huawei EMUI - Arbitrary Memory Write in HW_KEYMASTER Module

Title source: llm

Description

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

References (2)

Core 2

Core References

Vendor Advisory x_refsource_misc

https://consumer.huawei.com/en/support/bulletin/2022/8/

Vendor Advisory x_refsource_misc

https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202209-0000001392278845

Scores

CVSS v3 7.5

EPSS 0.0016

EPSS Percentile 36.7%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

Status published

Products (9)

huawei/emui 10.0.0

huawei/emui 10.1.0

huawei/emui 10.1.1

huawei/emui 11.0.0

huawei/harmonyos 2.0

huawei/magic_ui 3.0.0

huawei/magic_ui 3.1.0

huawei/magic_ui 3.1.1

huawei/magic_ui 4.0.0

Published Aug 10, 2022

Tracked Since Feb 18, 2026