An issue was discovered in SdHostDriver in the kernel 5.0 through 5.5 in Insyde InsydeH2O. There is an SMM callout that allows an attacker to access the System Management Mode and execute arbitrary code. This occurs because of a Numeric Range Comparison Without a Minimum Check.
History

Tue, 04 Nov 2025 20:30:00 +0000

Type Values Removed Values Added
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2022-02-03T01:43:30.000Z

Updated: 2025-11-04T19:12:35.317Z

Reserved: 2021-10-01T00:00:00.000Z

Link: CVE-2021-41838

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-02-03T02:15:07.080

Modified: 2025-11-04T20:16:01.043

Link: CVE-2021-41838

cve-icon Redhat

No data.