Cyber Resilience

CVE-2021-40040

High

Published: 10 August 2022

Published
10 August 2022
Modified
06 March 2026
KEV Added
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Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0016 37.0th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-40040 is a high-severity an unspecified weakness vulnerability in Huawei Emui. Its CVSS base score is 7.5 (High).

Operationally, ranked at the 37.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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

CWE(s)
NVD-CWE-noinfo

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

huawei
emui
10.0.0, 10.1.0, 10.1.1, 11.0.0
huawei
harmonyos
2.0
huawei
magic ui
3.0.0, 3.1.0, 3.1.1, 4.0.0

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References