CVE-2021-41838

HIGH

8.2

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.

CVE Details

CVSS v3.1 Score8.2

SeverityHIGH

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

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredHIGH

User InteractionNONE

Published2/3/2022

Last Modified11/4/2025

Sourcenvd

Honeypot Sightings0

Affected Products

insyde:insydeh2osiemens:simatic_field_pg_m5siemens:simatic_field_pg_m5_firmwaresiemens:simatic_field_pg_m6siemens:simatic_field_pg_m6_firmwaresiemens:simatic_ipc127esiemens:simatic_ipc127e_firmwaresiemens:simatic_ipc227gsiemens:simatic_ipc227g_firmwaresiemens:simatic_ipc277gsiemens:simatic_ipc277g_firmwaresiemens:simatic_ipc327gsiemens:simatic_ipc327g_firmwaresiemens:simatic_ipc377gsiemens:simatic_ipc377g_firmwaresiemens:simatic_ipc427esiemens:simatic_ipc427e_firmwaresiemens:simatic_ipc477esiemens:simatic_ipc477e_firmwaresiemens:simatic_ipc627esiemens:simatic_ipc627e_firmwaresiemens:simatic_ipc647esiemens:simatic_ipc647e_firmwaresiemens:simatic_ipc677esiemens:simatic_ipc677e_firmwaresiemens:simatic_ipc847esiemens:simatic_ipc847e_firmwaresiemens:simatic_itp1000siemens:simatic_itp1000_firmware

Weaknesses (CWE)

CWE-119

References

https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf(cve@mitre.org)

https://security.netapp.com/advisory/ntap-20220222-0001/(cve@mitre.org)

https://www.insyde.com/security-pledge(cve@mitre.org)

https://www.insyde.com/security-pledge/SA-2022023(cve@mitre.org)

https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf(af854a3a-2127-422b-91ae-364da2661108)

https://security.netapp.com/advisory/ntap-20220222-0001/(af854a3a-2127-422b-91ae-364da2661108)

https://www.insyde.com/security-pledge(af854a3a-2127-422b-91ae-364da2661108)

https://www.insyde.com/security-pledge/SA-2022023(af854a3a-2127-422b-91ae-364da2661108)

https://www.kb.cert.org/vuls/id/796611(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.