Improper input validation in Huawei Emui

CVE-2021-40017

The HW_KEYMASTER module lacks the validity check of the key format. Successful exploitation of this vulnerability may result in out-of-bounds memory access.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.006 (43.5th 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 11.0.1, 12.0.0
  • Huawei Harmonyos — versions 2.0
  • N/a Harmonyos;emui — versions HarmonyOS 2.0, EMUI 12.0.0,EMUI 11.0.1

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-40017?
CVE-2021-40017 is a critical-severity vulnerability in Huawei Emui, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2022-09-16.
How severe is CVE-2021-40017?
Critical severity. CVSS v3 base score is 9.8 out of 10.