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.
Published: 2022-02-03
Score: 8.2 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

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

Tue, 04 Nov 2025 20:30:00 +0000

Type Values Removed Values Added
References

Sun, 13 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00126}

epss

{'score': 0.00142}


Subscriptions

Insyde Insydeh2o
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-11-04T19:12:46.366Z

Reserved: 2021-11-13T00:00:00.000Z

Link: CVE-2021-43615

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-02-03T02:15:07.470

Modified: 2025-11-04T20:16:02.543

Link: CVE-2021-43615

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses