Critical severity · published Jan 6, 2022
CVE-2021-41842
An issue was discovered in AtaLegacySmm in the kernel 5.0 before 05.08.46, 5.1 before 05.16.46, 5.2 before 05.26.46, 5.3 before 05.35.46, 5.4 before 05.43.46, and 5.5 before…
9.8
CVSS
1.5%
EPSS
No
On KEV
Description
An issue was discovered in AtaLegacySmm in the kernel 5.0 before 05.08.46, 5.1 before 05.16.46, 5.2 before 05.26.46, 5.3 before 05.35.46, 5.4 before 05.43.46, and 5.5 before 05.51.45 in Insyde InsydeH2O. Code execution can occur because the SMI handler lacks a CommBuffer check.
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)1.5% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IN
Insydeh2o · Insyde
5.0 before 05.08.46; 5.1 before 05.16.46; 5.2 before 05.26.46; 5.3 before 05.35.46; after 5.4 before 05.43.46; 5.5 before 05.51.45 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-41842
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-41842
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220223-0002/
Vendor Advisory
https://www.insyde.com/security-pledge
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