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    "cveMetadata": {
        "cveId": "CVE-2021-43614",
        "assignerOrgId": "8338d8cb-57f7-4252-abc0-96fd13e98d21",
        "state": "PUBLISHED",
        "assignerShortName": "Insyde",
        "dateReserved": "2021-11-12T22:48:20.355Z",
        "datePublished": "2026-09-03T02:15:34.848Z",
        "dateUpdated": "2026-09-03T02:15:34.848Z"
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    "containers": {
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                "shortName": "Insyde",
                "dateUpdated": "2026-09-03T02:15:34.848Z"
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            "title": "VariableEditSmm: Error checking of UEFI variables could cause buffer overflow, leading to code execution",
            "datePublic": "2026-09-03T02:11:00.000Z",
            "affected": [
                {
                    "vendor": "Insyde Software",
                    "product": "InsydeH2O",
                    "platforms": [
                        "x86"
                    ],
                    "versions": [
                        {
                            "status": "affected",
                            "version": "InsydeH2OUvePkg",
                            "lessThan": "01.01.04.0008",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Error in handling the PlatformLangCodes UEFI variable could cause a buffer overflow, leading to resource exhaustion and failure.",
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            "references": [
                {
                    "url": "https://www.insyde.com/security-pledge/sa-2022026/"
                }
            ],
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                        "version": "3.1",
                        "attackVector": "PHYSICAL",
                        "attackComplexity": "HIGH",
                        "privilegesRequired": "HIGH",
                        "userInteraction": "REQUIRED",
                        "scope": "CHANGED",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "availabilityImpact": "LOW",
                        "baseSeverity": "MEDIUM",
                        "baseScore": 6.7,
                        "vectorString": "CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:L"
                    }
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            ],
            "source": {
                "discovery": "UNKNOWN"
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