CVE-2021-41838

Description

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.

Risk Information

Base Score

8.2

MODERATE

Vector

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

EPSS Score

Exploitation Probability

0.055

Associated Vulnerability

Vulnerability	OS Platform
Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability (CVE-2021-41838)	NCM

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234