What is CVE-2021-40006?

CVE-2021-40006 is a medium-severity vulnerability in Huawei Emui, classified under CWE-254. CVSS score: 4.6/10. Published 2022-01-10.

How severe is CVE-2021-40006?

Medium severity. CVSS v3 base score is 4.6 out of 10.

Vulnerability in Huawei Emui

CVE-2021-40006

Vulnerability of design defects in the security algorithm component. Successful exploitation of this vulnerability may affect confidentiality.

Published 2022-01-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.001 (3.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 3.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

Huawei Emui — versions 12.0.0, 12.0.1, 11.0.1
Huawei Harmonyos — versions 2.0, 2.0.1, 2.0.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-40006?: CVE-2021-40006 is a medium-severity vulnerability in Huawei Emui, classified under CWE-254. CVSS score: 4.6/10. Published 2022-01-10.
How severe is CVE-2021-40006?: Medium severity. CVSS v3 base score is 4.6 out of 10.