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{"cveTags": [], "descriptions": [{"lang": "en", "value": "Improper input validation for DIMM serial presence detect (SPD) metadata could allow an attacker with physical access, ring0 access on a system with a non-compliant DIMM, or control over the Root of Trust for BIOS update, to potentially overwrite guest memory resulting in loss of guest data integrity."}], "id": "CVE-2024-21944", "lastModified": "2026-06-10T23:16:44.950", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 0.8, "impactScore": 4.0, "source": "psirt@amd.com", "type": "Secondary"}]}, "published": "2026-06-10T23:16:44.950", "references": [{"source": "psirt@amd.com", "url": "https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3015.html"}], "sourceIdentifier": "psirt@amd.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "psirt@amd.com", "type": "Secondary"}]}

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{"affected": [{"configurations": [{"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "Milan PI 1.0.0.D"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "SEV FW 1.55.22 (hex 1.37.16)"}}], "enrichment": {"confidence": 93.0, "confidence_source": "matching", "scores": [{"score": 93.0, "source": "matching"}]}, "original": {"product": "AMD EPYC\u2122 7003 Series Processors", "source": "cna", "vendor": "AMD"}, "product": "epyc_7003_series_processors", "vendor": "amd"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "Genoa PI 1.0.0.D"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "SEV FW 1.55.38 (hex 1.37.26)"}}], "enrichment": {"confidence": 91.0, "confidence_source": "matching", "scores": [{"score": 91.0, "source": "matching"}]}, "original": {"product": "AMD EPYC\u2122 9004 Series Processor", "source": "cna", "vendor": "AMD"}, "product": "epyc_9004_series_processors", "vendor": "amd"}], "created": "2026-06-10T23:30:44.132204+00:00", "title": "DIMM SPD Metadata Validation Error Allows Guest Memory Overwrite", "updated": "2026-06-11T10:30:11.836861+00:00", "vendors": ["amd", "amd$PRODUCT$epyc_7003_series_processors", "amd$PRODUCT$epyc_9004_series_processors"]}