CVE-2021-41838

CVE-2021-41838CVE-2021-41838

insyde / insydeh2o

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.

Scoring

CVSS 8.2 ()
VectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Last modified2026-08-11
Sourced from NVD. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.