{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-40668",
        "assignerOrgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
        "state": "PUBLISHED",
        "assignerShortName": "AMD",
        "dateReserved": "2026-04-14T17:04:40.591Z",
        "datePublished": "2026-11-10T22:11:05.184Z",
        "dateUpdated": "2026-11-10T22:11:05.184Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "b58fc414-a1e4-4f92-9d70-1add41838648",
                "shortName": "AMD",
                "dateUpdated": "2026-11-10T22:11:05.184Z"
            },
            "affected": [
                {
                    "defaultStatus": "affected",
                    "vendor": "AMD",
                    "product": "AMD EPYC™ 9004 Series Processors",
                    "versions": [
                        {
                            "version": "GenoaPI_1.0.0.J",
                            "status": "unaffected"
                        }
                    ]
                },
                {
                    "defaultStatus": "affected",
                    "vendor": "AMD",
                    "product": "AMD EPYC™ 7003 Series Processors",
                    "versions": [
                        {
                            "version": "MilanPI-SP3_1.0.0.K",
                            "status": "unaffected"
                        }
                    ]
                },
                {
                    "defaultStatus": "affected",
                    "vendor": "AMD",
                    "product": "AMD EPYC™ 9005 Series Processors",
                    "versions": [
                        {
                            "version": "TurinPI_1.0.0.B",
                            "status": "unaffected"
                        }
                    ]
                },
                {
                    "defaultStatus": "affected",
                    "vendor": "AMD",
                    "product": "AMD EPYC™ 8004 Series Processors",
                    "versions": [
                        {
                            "version": "GenoaPI_1.0.0.J",
                            "status": "unaffected"
                        }
                    ]
                },
                {
                    "defaultStatus": "affected",
                    "vendor": "AMD",
                    "product": "AMD EPYC™ 8005 Series Processors",
                    "versions": [
                        {
                            "version": "TurinPI_1.0.0.B",
                            "status": "unaffected"
                        }
                    ]
                },
                {
                    "defaultStatus": "affected",
                    "vendor": "AMD",
                    "product": "AMD EPYC™ Embedded 7003 Series Processors",
                    "versions": [
                        {
                            "version": "EmbMilanPI-SP3 1.0.0.E",
                            "status": "unaffected"
                        }
                    ]
                },
                {
                    "defaultStatus": "affected",
                    "vendor": "AMD",
                    "product": "AMD EPYC™ Embedded 9004  Series Processors (formerly codenamed \"Genoa\")",
                    "versions": [
                        {
                            "version": "EmbeddedGenoaPI_1.0.0.E",
                            "status": "unaffected"
                        }
                    ]
                },
                {
                    "defaultStatus": "affected",
                    "vendor": "AMD",
                    "product": "AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed \"Bergamo\")",
                    "versions": [
                        {
                            "version": "EmbeddedGenoaPI_1.0.0.E",
                            "status": "unaffected"
                        }
                    ]
                },
                {
                    "defaultStatus": "affected",
                    "vendor": "AMD",
                    "product": "AMD EPYC™ Embedded 8004 Series Processors",
                    "versions": [
                        {
                            "version": "EmbeddedGenoaPI_1.0.0.E",
                            "status": "unaffected"
                        }
                    ]
                },
                {
                    "defaultStatus": "affected",
                    "vendor": "AMD",
                    "product": "AMD EPYC™ Embedded 9005 Series Processors",
                    "versions": [
                        {
                            "version": "EmbeddedTurinPI_SP5_1005",
                            "status": "unaffected"
                        }
                    ]
                }
            ],
            "datePublic": "2026-11-10T22:08:20.708Z",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Authentication bypass by spoofing in AMD Secure Encrypted Virtualization (SEV) firmware could allow a malicious hypervisor to request attestation reports for VMPL 0.",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/html",
                            "value": "Authentication bypass by spoofing in AMD Secure Encrypted Virtualization (SEV) firmware could allow a malicious hypervisor to request attestation reports for VMPL 0.<br>"
                        }
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-290",
                            "description": "CWE-290  Authentication Bypass by Spoofing",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3038.html"
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "x_generator": {
                "engine": "AMD PSIRT Automation 1.0"
            },
            "metrics": [
                {
                    "cvssV4_0": {
                        "version": "4.0",
                        "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N",
                        "attackVector": "LOCAL",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "HIGH",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "LOW",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 4.6,
                        "baseSeverity": "MEDIUM"
                    },
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ]
                }
            ]
        }
    }
}