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High severity · published Feb 3, 2022
CVE-2021-41840
An issue was discovered in NvmExpressDxe in the kernel 5.0 through 5.5 in Insyde InsydeH2O
8.2
CVSS
0.3%
EPSS
No
On KEV
Description
An issue was discovered in NvmExpressDxe in the kernel 5.0 through 5.5 in Insyde InsydeH2O. There is an SMM callout that allows an attacker to access the System Management Mode and execute arbitrary code. This occurs because of Inclusion of Functionality from an Untrusted Control Sphere.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IN
Insydeh2o · Insyde
5.2 before 5.23.35; 5.3 before 5.32.35; 5.4 before 5.40.35 · source: NVD
Affected product
IN
Insydeh2o
Insyde
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-41840
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-41840
Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf
Third Party Advisory
https://security.netapp.com/advisory/ntap-20220217-0014/
Vendor Advisory
https://www.insyde.com/security-pledge
Vendor Advisory
https://www.insyde.com/security-pledge/SA-2022018
www.kb.cert.org
https://www.kb.cert.org/vuls/id/796611
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-306654.html
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