Out-of-bounds Read in Huawei Emui
CVE-2021-46839
The HW_KEYMASTER module has a vulnerability of missing bounds check on length.Successful exploitation of this vulnerability may cause malicious construction of data, which results in out-of-bounds access.
Vulnerability class: Buffer Overflow
EPSS: 0.004 (35.6th percentile) — read the EPSS interpretation.
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:H/I:H/A:N.
Affected products
- Huawei Emui — versions 12.0.0, 11.0.1
- Huawei Harmonyos — versions 2.0
Weakness classification (CWE)
References
- psirt@huawei.com (Vendor Advisory)
- psirt@huawei.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-46839?
- CVE-2021-46839 is a critical-severity vulnerability in Huawei Emui, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2022-10-14.
- How severe is CVE-2021-46839?
- Critical severity. CVSS v3 base score is 9.1 out of 10.