What is CVE-2021-40053?

CVE-2021-40053 is a critical-severity vulnerability in Huawei Emui, classified under Incorrect Default Permissions. CVSS score: 9.1/10. Published 2022-03-10.

How severe is CVE-2021-40053?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Vulnerability in Huawei Emui

CVE-2021-40053

There is a permission control vulnerability in the Nearby module.Successful exploitation of this vulnerability will affect availability and integrity.

Published 2022-03-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (51.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 51.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Huawei Emui — versions 10.0.0, 10.1.0, 10.1.1
Huawei Harmonyos — versions 2.0, 2.1
Huawei Magic Ui — versions 3.0.0, 3.1.0, 3.1.1
Harmonyos;emui;magic Ui — versions HarmonyOS 2.0,HarmonyOS 2.1, 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

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

References

consumer.huawei.com/en/support/bulletin/2022/3/ (Vendor Advisory)
device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202209-0… (Vendor Advisory)

Frequently asked questions

What is CVE-2021-40053?: CVE-2021-40053 is a critical-severity vulnerability in Huawei Emui, classified under Incorrect Default Permissions. CVSS score: 9.1/10. Published 2022-03-10.
How severe is CVE-2021-40053?: Critical severity. CVSS v3 base score is 9.1 out of 10.