What is CVE-2021-39993?

CVE-2021-39993 is a critical-severity vulnerability in Huawei Emui, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2022-01-10.

How severe is CVE-2021-39993?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Integer overflow in Huawei Emui

CVE-2021-39993

There is an Integer overflow vulnerability with ACPU in smartphones. Successful exploitation of this vulnerability may cause out-of-bounds access.

Vulnerability class: Integer Overflow

EPSS: 0.008 (50.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Huawei Emui — versions 11.0.0
Huawei Magic_ui — versions 4.0.0
N/a Emui;magic Ui — versions EMUI 11.0.0, Magic UI 4.0.0

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

psirt@huawei.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-39993?: CVE-2021-39993 is a critical-severity vulnerability in Huawei Emui, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2022-01-10.
How severe is CVE-2021-39993?: Critical severity. CVSS v3 base score is 9.8 out of 10.