CVE-2023-22616

Public Exploit

Description

An issue was discovered in Insyde InsydeH2O with kernel 5.2 through 5.5. The Save State register is not checked before use. The IhisiSmm driver does not check the value of a save state register before use. Due to insufficient input validation, an attacker can corrupt SMRAM.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
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://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/ third party advisory exploit
https://www.insyde.com/security-pledge/SA-2023022 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-22616?
CVE-2023-22616 has been scored as a high severity vulnerability.
How to fix CVE-2023-22616?
To fix CVE-2023-22616, 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-2023-22616 being actively exploited in the wild?
It is possible that CVE-2023-22616 is being exploited or will be exploited in a near future based on public information. 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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