CVE-2021-43522

Description

An issue was discovered in Insyde InsydeH2O with kernel 5.1 through 2021-11-08, 5.2 through 2021-11-08, and 5.3 through 2021-11-08. A StorageSecurityCommandDxe SMM memory corruption vulnerability allows an attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.06%
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://security.netapp.com/advisory/ntap-20220216-0003/ 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-2021-43522?
CVE-2021-43522 has been scored as a high severity vulnerability.
How to fix CVE-2021-43522?
To fix CVE-2021-43522, 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-2021-43522 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-43522 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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