Published: 03/02/2022 Updated: 01/03/2022

CVSS v2 Base Score: 7.2 | Impact Score: 10 | Exploitability Score: 3.9

CVSS v3 Base Score: 8.2 | Impact Score: 6 | Exploitability Score: 1.5

VMScore: 641

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

An issue exists in SdHostDriver in the kernel 5.0 up to and including 5.5 in Insyde InsydeH2O. There is an SMM callout that allows an malicious user to access the System Management Mode and execute arbitrary code. This occurs because of a Numeric Range Comparison Without a Minimum Check.

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insyde insydeh2o
siemens simatic_field_pg_m5_firmware
siemens simatic_field_pg_m6_firmware
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siemens simatic_itp1000_firmware

CWE-119 https://www.insyde.com/security-pledge https://www.insyde.com/security-pledge/SA-2022023 https://security.netapp.com/advisory/ntap-20220222-0001/https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf https://nvd.nist.gov https://www.kb.cert.org/vuls/id/796611

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CVE-2021-41838

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