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VULNERABILITIES

CVE-2021-43323 Details

Description

An issue was discovered in UsbCoreDxe in Insyde InsydeH2O with kernel 5.5 before 05.51.45, 5.4 before 05.43.45, 5.3 before 05.35.45, 5.2 before 05.26.45, 5.1 before 05.16.45, and 5.0 before 05.08.45. An SMM callout vulnerability allows an attacker to hijack execution flow of code running in System Management Mode. 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-20220217-0013/ CVEThird Party Advisory
https://www.insyde.com/security-pledge CVEVendor Advisory
https://www.kb.cert.org/vuls/id/796611 CVE

see all 8 references

Weakness Enumeration

CWE-IDCWE NameSource
NVD-CWE-noinfoInsufficient Information to Classify Weakness[email protected]

Affected Products

ProductVersions
insyde insydeh2o
>= 5.1, < 5.16.45
>= 5.2, < 5.26.45
>= 5.3, < 5.33.45
>= 5.0, < 5.08.45
>= 5.4, < 5.43.45

CPE

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

Remediation

  • No remediation found in references.

Change History

9 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-43323
NVD Published Date:
Feb 3, 2022
NVD Last Modified:
Aug 11, 2026
Source:
[email protected]
CVE-2021-43323 Details - Not Deferred