What is CVE-2021-36998?

CVE-2021-36998 is a medium-severity vulnerability in Huawei Emui. CVSS score: 5.3/10. Published 2021-10-28.

How severe is CVE-2021-36998?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Huawei Emui

CVE-2021-36998

There is an Improper verification vulnerability in Huawei Smartphone.Successful exploitation of this vulnerability may allow attempts to read an array that is out of bounds.

Published 2021-10-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.006 (44.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Huawei Emui — versions 10.1.1, 11.0.0
Huawei Magic Ui — versions 4.0.0
Huawei Magic Ui — versions 3.1.1, 4.0.0

References

consumer.huawei.com/en/support/bulletin/2021/7/ (Vendor Advisory)

Frequently asked questions

What is CVE-2021-36998?: CVE-2021-36998 is a medium-severity vulnerability in Huawei Emui. CVSS score: 5.3/10. Published 2021-10-28.
How severe is CVE-2021-36998?: Medium severity. CVSS v3 base score is 5.3 out of 10.