Critical severity · published Sep 16, 2022
CVE-2021-40017
The HW_KEYMASTER module lacks the validity check of the key format
9.8
CVSS
0.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EM
Emui · Huawei
11.0.1; 12.0.0 · source: NVD
HA
Harmonyos · Huawei
2.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-40017
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-40017
Vendor Advisory
https://consumer.huawei.com/en/support/bulletin/2022/10/
Vendor Advisory
https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202209-0000001392278845
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