CVE-2023-22613

Description

An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. It is possible to write to an attacker-controlled address. An attacker could invoke an SMI handler with a malformed pointer in RCX that overlaps SMRAM, resulting in SMM memory corruption.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.07%
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://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/ not applicable
https://www.insyde.com/security-pledge/SA-2023023 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-22613?
CVE-2023-22613 has been scored as a high severity vulnerability.
How to fix CVE-2023-22613?
To fix CVE-2023-22613, 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-2023-22613 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-22613 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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