An issue was discovered in SysPasswordDxe in Insyde InsydeH2O. User and administrator password hashes are exposed in runtime UEFI variables, leading to escalation of privilege

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Advisories

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Fixes

Solution

Kernel 5.1: Version 05.17.09 Kernel 5.2: Version 05.27.09 Kernel 5.3: Version 05.36.09 Kernel 5.4: Version 05.44.09 Kernel 5.5: Version 05.52.09


Workaround

No workaround given by the vendor.

History

Thu, 03 Sep 2026 16:00:00 +0000

Type Values Removed Values Added
First Time appeared Insyde Software
Insyde Software insydeh2o
Vendors & Products Insyde Software
Insyde Software insydeh2o

Thu, 03 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 03 Sep 2026 02:15:00 +0000

Type Values Removed Values Added
Description An issue was discovered in SysPasswordDxe in Insyde InsydeH2O. User and administrator password hashes are exposed in runtime UEFI variables, leading to escalation of privilege
Title SysPasswordDxe: Password hashes are exposed in runtime UEFI variables, leading to escalation of privilege
Weaknesses CWE-732
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Insyde

Published:

Updated: 2026-09-03T13:03:26.609Z

Reserved: 2021-11-12T22:48:20.355Z

Link: CVE-2021-43613

cve-icon Vulnrichment

Updated: 2026-09-03T13:02:59.828Z

cve-icon NVD

Status : Received

Published: 2026-09-03T13:04:12.157

Modified: 2026-09-03T14:16:59.750

Link: CVE-2021-43613

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-03T15:33:33Z

Weaknesses