CVE-2021-43615

Published Feb 3, 2022 CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
Description
An issue was discovered in HddPassword in Insyde InsydeH2O with kernel 5.1 before 05.16.23, 5.2 before 05.26.23, 5.3 before 05.35.23, 5.4 before 05.43.22, and 5.5 before 05.51.22. An SMM memory corruption vulnerability allows an attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-30529 An issue was discovered in HddPassword in Insyde InsydeH2O with kernel 5.1 before 05.16.23, 5.2 before 05.26.23, 5.3 before 05.35.23, 5.4 before 05.43.22, and 5.5 before 05.51.22. An SMM memory corruption vulnerability allows an attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00126}

epss

{'score': 0.00142}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 11, 2026, 12:22 PM
Reserved
Nov 13, 2021, 12:00 AM
Status
Modified
Published
Feb 3, 2022, 2:15 AM
Modified
Aug 11, 2026, 1:17 PM