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CVE-2021-41839 Details

Description

An issue was discovered in NvmExpressDxe in the kernel 5.0 through 5.5 in Insyde InsydeH2O. Because of an Untrusted Pointer Dereference that causes SMM memory corruption, an attacker may be able to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.

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-20220217-0016/ CVEThird Party Advisory
https://www.insyde.com/security-pledge CVEVendor Advisory
https://www.insyde.com/security-pledge/SA-2022020 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
insyde insydeh2o
>= 5.1, < 5.16.25
>= 5.2, < 5.26.25
>= 5.3, < 5.35.25
>= 5.4, < 5.43.25
>= 5.5, < 5.51.25

CPE

  • cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

11 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-41839
NVD Published Date:
Feb 3, 2022
NVD Last Modified:
Aug 11, 2026
Source:
[email protected]
CVE-2021-41839 Details - Not Deferred