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CVE-2021-41838

HIGH CVSS: 8.2 Published: 2022-02-03 Modified: 2026-08-11

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.

Affected Platforms

Siemens Simatic Ipc847E FirmwareSiemens Simatic Itp1000 FirmwareSiemens Simatic Ipc627ESiemens Simatic Ipc427ESiemens Simatic Ipc277GSiemens Simatic Ipc227G FirmwareSiemens Simatic Ipc847EInsyde Insydeh2OSiemens Simatic Ipc127ESiemens Simatic Ipc227G

Weakness Type

CWE-119

References