CVE-2023-22616

Name of the Vulnerable Software and Affected Versions Insyde InsydeH2O versions 5.2 through 5.5

Description An issue was discovered in Insyde InsydeH2O where 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.

Recommendations For versions 5.2 through 5.5, as a temporary workaround, consider restricting access to the IhisiSmm driver until a patch is available. Additionally, avoid using the Save State register in sensitive operations until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.