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VULNERABILITIES

CVE-2021-41838 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:8.2 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://cert-portal.siemens.com/productcert/html/ssa-306654.html siemens-SADP
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf CVEThird Party Advisory
https://security.netapp.com/advisory/ntap-20220222-0001/ CVEThird Party Advisory
https://www.insyde.com/security-pledge CVEVendor Advisory
https://www.insyde.com/security-pledge/SA-2022023 CVEVendor Advisory

see all 10 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer[email protected]

Affected Products

ProductVersions

Change History

9 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-41838
NVD Published Date:
Feb 3, 2022
NVD Last Modified:
Aug 11, 2026
Source:
[email protected]
CVE-2021-41838 Details - Not Deferred