{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-20585","assignerOrgId":"b58fc414-a1e4-4f92-9d70-1add41838648","state":"PUBLISHED","assignerShortName":"AMD","dateReserved":"2022-10-27T18:53:39.759Z","datePublished":"2026-04-16T18:42:28.281Z","dateUpdated":"2026-04-16T19:12:06.991Z"},"containers":{"cna":{"providerMetadata":{"orgId":"b58fc414-a1e4-4f92-9d70-1add41838648","shortName":"AMD","dateUpdated":"2026-04-16T19:12:06.991Z"},"datePublic":"2026-04-16T18:42:00.000Z","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-788","description":"CWE-788  Access of Memory Location After End of Buffer","type":"CWE"}]}],"affected":[{"vendor":"AMD","product":"AMD EPYC™ 7003 Series Processors","versions":[{"status":"unaffected","version":"SEV FW 1.37.23"}],"defaultStatus":"affected"},{"vendor":"AMD","product":"AMD EPYC™ 9004 Series Processors","versions":[{"status":"unaffected","version":"SEV FW 1.37.31"}],"defaultStatus":"affected"},{"vendor":"AMD","product":"AMD EPYC™ Embedded 7003 Series Processors","versions":[{"status":"unaffected","version":"EmbMilanPI-SP3 1.0.0.B"}],"defaultStatus":"affected"},{"vendor":"AMD","product":"AMD EPYC™ Embedded 9004 Series Processors","versions":[{"status":"unaffected","version":"EmbGenoaPI-1.0.0.A"}],"defaultStatus":"affected"}],"descriptions":[{"lang":"en","value":"Insufficient checks of the RMP on host buffer access in IOMMU may allow an attacker with privileges and a compromised hypervisor to trigger an out of bounds condition without RMP checks, resulting in a potential loss of confidential guest integrity.","supportingMedia":[{"type":"text/html","base64":false,"value":"Insufficient checks of the RMP on host buffer access in IOMMU may allow an attacker with privileges and a compromised hypervisor to trigger an out of bounds condition without RMP checks, resulting in a potential loss of confidential guest integrity."}]}],"references":[{"url":"https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3016.html"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"HIGH","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":5.6,"vectorString":"CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N"}}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"AMD PSIRT Automation 1.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-16T18:58:05.996293Z","id":"CVE-2023-20585","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-04-16T18:58:58.114Z"}}]}}