{"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\u2122 9004 Series Processors", "versions": [{"version": "GenoaPI_1.0.0.J", "status": "unaffected"}]}, {"defaultStatus": "affected", "vendor": "AMD", "product": "AMD EPYC\u2122 7003 Series Processors", "versions": [{"version": "MilanPI-SP3_1.0.0.K", "status": "unaffected"}]}, {"defaultStatus": "affected", "vendor": "AMD", "product": "AMD EPYC\u2122 9005 Series Processors", "versions": [{"version": "TurinPI_1.0.0.B", "status": "unaffected"}]}, {"defaultStatus": "affected", "vendor": "AMD", "product": "AMD EPYC\u2122 8004 Series Processors", "versions": [{"version": "GenoaPI_1.0.0.J", "status": "unaffected"}]}, {"defaultStatus": "affected", "vendor": "AMD", "product": "AMD EPYC\u2122 8005 Series Processors", "versions": [{"version": "TurinPI_1.0.0.B", "status": "unaffected"}]}, {"defaultStatus": "affected", "vendor": "AMD", "product": "AMD EPYC\u2122 Embedded 7003 Series Processors", "versions": [{"version": "EmbMilanPI-SP3 1.0.0.E", "status": "unaffected"}]}, {"defaultStatus": "affected", "vendor": "AMD", "product": "AMD EPYC\u2122 Embedded 9004 Series Processors (formerly codenamed \"Genoa\")", "versions": [{"version": "EmbeddedGenoaPI_1.0.0.E", "status": "unaffected"}]}, {"defaultStatus": "affected", "vendor": "AMD", "product": "AMD EPYC\u2122 Embedded 9004 Series Processors (formerly codenamed \"Bergamo\")", "versions": [{"version": "EmbeddedGenoaPI_1.0.0.E", "status": "unaffected"}]}, {"defaultStatus": "affected", "vendor": "AMD", "product": "AMD EPYC\u2122 Embedded 8004 Series Processors", "versions": [{"version": "EmbeddedGenoaPI_1.0.0.E", "status": "unaffected"}]}, {"defaultStatus": "affected", "vendor": "AMD", "product": "AMD EPYC\u2122 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"}]}]}}}

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