Out-of-bounds Read in Huawei Emui
CVE-2021-40020
There is an Out-of-bounds array read vulnerability in the security storage module in smartphones. Successful exploitation of this vulnerability may affect service confidentiality.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.007 (50.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.1% 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 11.0.0, 10.1.1, 10.1.0
- Huawei Magic Ui — versions 4.0.0, 3.1.1, 3.1.0
- Huawei Magic Ui — versions 3.0.0, 3.1.0, 3.1.1
Weakness classification (CWE)
References
- consumer.huawei.com/en/support/bulletin/2022/1/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-40020?
- CVE-2021-40020 is a high-severity vulnerability in Huawei Emui, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2022-01-10.
- How severe is CVE-2021-40020?
- High severity. CVSS v3 base score is 7.5 out of 10.