What’s Vulnerable › Vulnerabilities

CVE-2023-22616

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-04-12 · updated 2026-06-17
• Weakness: CWE-610

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.

Affected products

• Insydeh2O: from 5.2 through 5.5

References

• https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/
• https://www.insyde.com/security-pledge
• https://www.insyde.com/security-pledge/SA-2023022
• https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/
• https://www.insyde.com/security-pledge
• https://www.insyde.com/security-pledge/SA-2023022

Get alerted when CVE-2023-22616 or the next vulnerability affects your stack