Error in handling the PlatformLangCodes UEFI variable could cause a buffer overflow, leading to resource exhaustion and failure.

No CVSS v4.0

Attack Vector Physical

Attack Complexity High

Privileges Required High

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact Low

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Insyde Software InsydeH2O unaffected
Version Status Constraints
InsydeH2OUvePkg affected < 01.01.04.0008

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Project Subscriptions

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.insyde.com/security-pledge/sa-2022026/ cve-icon
History

Thu, 03 Sep 2026 10:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-120

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

Type Values Removed Values Added
Description Error in handling the PlatformLangCodes UEFI variable could cause a buffer overflow, leading to resource exhaustion and failure.
Title VariableEditSmm: Error checking of UEFI variables could cause buffer overflow, leading to code execution
References
Metrics cvssV3_1

{'score': 6.7, 'vector': 'CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:L'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Insyde

Published:

Updated: 2026-09-03T02:15:34.848Z

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

Link: CVE-2021-43614

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

Updated: 2026-09-03T10:00:12Z

Weaknesses