CVE-2023-22614

An issue was discovered in ChipsetSvcSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. There is insufficient input validation in BIOS Guard updates. An attacker can induce memory corruption in SMM by supplying malformed inputs to the BIOS Guard SMI handler.

CVSS v3.1 NVD

8.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS

0.38% chance of exploitation in the next 30 days, 30th percentile

Published

2023-04-11

Updated

2025-02-11

Proof-of-concept exploits (1)

• https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/

Security advisories

• https://www.insyde.com/security-pledge
• https://www.insyde.com/security-pledge/SA-2023020
• https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode

References

• CVE Record
• NVD entry