CVE-2024-21977

{"id": "CVE-2024-21977", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "psirt@amd.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 3.2, "attackVector": "LOCAL", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 1.5}]}, "published": "2025-09-05T13:15:31.310", "references": [{"url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3014.html", "source": "psirt@amd.com"}, {"url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4012.html", "source": "psirt@amd.com"}, {"url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-5007.html", "source": "psirt@amd.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "psirt@amd.com", "description": [{"lang": "en", "value": "CWE-459"}]}], "descriptions": [{"lang": "en", "value": "Incomplete cleanup after loading a CPU microcode patch may allow a privileged attacker to degrade the entropy of the RDRAND instruction, potentially resulting in loss of integrity for SEV-SNP guests."}], "lastModified": "2025-09-05T17:47:10.303", "sourceIdentifier": "psirt@amd.com"}