CVE-2023-22616

HighCVSS 7.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-610

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/Exploit, Third Party Advisory
https://www.insyde.com/security-pledgeVendor Advisory
https://www.insyde.com/security-pledge/SA-2023022Vendor Advisory
https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/Exploit, Third Party Advisory
https://www.insyde.com/security-pledgeVendor Advisory
https://www.insyde.com/security-pledge/SA-2023022Vendor Advisory

Timeline

Published: Apr 12, 2023
Last modified: Jun 17, 2026
NVD status: Modified

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