High severity · published Aug 9, 2022
CVE-2021-40040
Vulnerability of writing data to an arbitrary address in the HW_KEYMASTER module
7.5
CVSS
0.6%
EPSS
No
On KEV
Description
Vulnerability of writing data to an arbitrary address in the HW_KEYMASTER module. Successful exploitation of this vulnerability may affect 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)0.6% · higher than 47% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HU
HarmonyOS;EMUI;Magic UI ·
HarmonyOS 2.0; EMUI 11.0.0,EMUI 10.1.1,EMUI 10.1.0,EMUI 10.0.0; Magic UI 4.0.0,Magic UI 3.1.1,Magic UI 3.1.0,Magic UI 3.0.0 · source: vendor
EM
Emui · Huawei
10.0.0; 10.1.0; 10.1.1; 11.0.0 · source: NVD
HA
Harmonyos · Huawei
2.0 · 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-2021-40040
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-40040
Vendor Advisory
https://consumer.huawei.com/en/support/bulletin/2022/8/
Vendor Advisory
https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202209-0000001392278845