CVE-2021-41840

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.

Category

8.2
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.06%
Vendor Advisory insyde.com Vendor Advisory insyde.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.insyde.com/security-pledge vendor advisory
https://www.insyde.com/security-pledge/SA-2022018 vendor advisory
https://security.netapp.com/advisory/ntap-20220217-0014/ third party advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-41840?
CVE-2021-41840 has been scored as a high severity vulnerability.
How to fix CVE-2021-41840?
To fix CVE-2021-41840, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-41840 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-41840 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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