CVE-2021-41840

HighCVSS 8.2/10Last modified Aug 11, 2026

Description

An issue was discovered in NvmExpressDxe 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 Inclusion of Functionality from an Untrusted Control Sphere.

Metrics

CVSS 3.1 8.2/10CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-770

Affected software

VendorProductVersions
n/an/an/a
SiemensSIMATIC Field PG M5< V22.01.10
SiemensSIMATIC Field PG M6< V26.01.13
SiemensSIMATIC IPC127E< V27.01.09
SiemensSIMATIC IPC227G< V28.01.04
SiemensSIMATIC IPC277G< V28.01.04
SiemensSIMATIC IPC277G PRO< V28.01.04
SiemensSIMATIC IPC327G< V28.01.04
SiemensSIMATIC IPC377G< V28.01.04
SiemensSIMATIC IPC427E< V21.01.17
SiemensSIMATIC IPC477E< V21.01.17
SiemensSIMATIC IPC477E PRO< V21.01.17
SiemensSIMATIC IPC627E< V25.02.12
SiemensSIMATIC IPC647E< V25.02.12
SiemensSIMATIC IPC677E< V25.02.12
SiemensSIMATIC IPC847E< V25.02.12
SiemensSIMATIC ITP1000< V23.01.10
SiemensSIPLUS IPC427E< V21.01.17

References

Timeline

Published
Feb 3, 2022
Last modified
Aug 11, 2026
NVD status
Modified

Related CVEs from 2021

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