High severity · published Jan 10, 2022
CVE-2021-40020
There is an Out-of-bounds array read vulnerability in the security storage module in smartphones
7.5
CVSS
0.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EM
Emui · Huawei
10.0.0; 10.1.0; 10.1.1; 11.0.0 · source: NVD
MU
Magic UI · Huawei
3.0.0; 3.1.0; 3.1.1; 4.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-40020
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-40020
Vendor Advisory
https://consumer.huawei.com/en/support/bulletin/2022/1/
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