{"id":"CVE-2023-20591","state":"PUBLISHED","title":"Improper re-initialization of IOMMU during the DRTM event","description":"Improper re-initialization of IOMMU during the DRTM event\nmay permit an untrusted platform configuration to persist, allowing an attacker\nto read or modify hypervisor memory, potentially resulting in loss of\nconfidentiality, integrity, and availability.","publishedAt":"2024-08-13T16:53:23.681Z","updatedAt":"2025-03-13T16:41:15.645Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L","source":"AMD"},"assigner":"AMD","products":["AMD AMD EPYC™ 7003  Series Processors","AMD AMD EPYC™ 9004 Series Processors","AMD AMD EPYC™ Embedded 7003 Series Processors","AMD AMD EPYC™ Embedded 9003 Series Processors"],"affected":[{"vendor":"AMD","product":"AMD EPYC™ 7003  Series Processors","defaultStatus":"affected","versions":[{"version":"MilanPI 1.0.0.B","status":"unaffected","versionType":"PI"}]},{"vendor":"AMD","product":"AMD EPYC™ 9004 Series Processors","defaultStatus":"affected","versions":[{"version":"Genoa 1.0.0.8","status":"unaffected"}]},{"vendor":"AMD","product":"AMD EPYC™ Embedded 7003 Series Processors","defaultStatus":"affected","versions":[{"version":"EmbMilanPI-SP3 1.0.0.7","status":"unaffected"}]},{"vendor":"AMD","product":"AMD EPYC™ Embedded 9003 Series Processors","defaultStatus":"affected","versions":[{"version":"EmbGenoaPI-SP5  1.0.0.3","status":"unaffected"}]}],"references":["https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html"],"weaknesses":["CWE-665"],"ingestedAt":"2026-10-29T20:05:36.141Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/20xxx/CVE-2023-20591.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-20591","state":"PUBLISHED","datePublished":"2024-08-13T16:53:23.681Z","dateUpdated":"2025-03-13T16:41:15.645Z","assignerShortName":"AMD","assignerOrgId":"b58fc414-a1e4-4f92-9d70-1add41838648","dateReserved":"2022-10-27T18:53:39.761Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"Improper re-initialization of IOMMU during the DRTM event\nmay permit an untrusted platform configuration to persist, allowing an attacker\nto read or modify hypervisor memory, potentially resulting in loss of\nconfidentiality, integrity, and availability."}],"affected":[{"vendor":"AMD","product":"AMD EPYC™ 7003  Series Processors","defaultStatus":"affected","versions":[{"version":"MilanPI 1.0.0.B","status":"unaffected","versionType":"PI"}]},{"vendor":"AMD","product":"AMD EPYC™ 9004 Series Processors","defaultStatus":"affected","versions":[{"version":"Genoa 1.0.0.8","status":"unaffected"}]},{"vendor":"AMD","product":"AMD EPYC™ Embedded 7003 Series Processors","defaultStatus":"affected","versions":[{"version":"EmbMilanPI-SP3 1.0.0.7","status":"unaffected"}]},{"vendor":"AMD","product":"AMD EPYC™ Embedded 9003 Series Processors","defaultStatus":"affected","versions":[{"version":"EmbGenoaPI-SP5  1.0.0.3","status":"unaffected"}]}],"references":[{"url":"https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"providerMetadata":{"shortName":"AMD","orgId":"b58fc414-a1e4-4f92-9d70-1add41838648","dateUpdated":"2024-08-13T16:53:23.681Z"},"datePublic":"2024-08-13T16:00:00.000Z","source":{"advisory":"AMD-SB-4002, AMD-SB-3002, AMD-SB-5001","discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CISA ADP Vulnrichment","affected":[{"vendor":"amd","product":"epyc_7003_firmware","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThan":"milanpi_1.0.0.b","versionType":"custom"}],"cpes":["cpe:2.3:o:amd:epyc_7003_firmware:*:*:*:*:*:*:*:*"]},{"vendor":"amd","product":"epyc_9003_firmware","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThan":"genoapi_1.0.0.8","versionType":"custom"}],"cpes":["cpe:2.3:o:amd:epyc_9003_firmware:*:*:*:*:*:*:*:*"]},{"vendor":"amd","product":"epyc_7773x_firmware","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThan":"milanpi_1.0.0.b","versionType":"custom"}],"cpes":["cpe:2.3:o:amd:epyc_7203_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7203p_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_72f3_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7303_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7303p_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7313p_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7343_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7373x_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7413_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7443_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7443p_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7453_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7473x_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_74f3_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7513_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7543_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7573x_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_75f3_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7643_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7643p_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7663_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7663p_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7713_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7713p_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7763_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_7773x_firmware:-:*:*:*:*:*:*:*"]},{"vendor":"amd","product":"epyc_9754s_firmware","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThan":"genoapi_1.0.0.8","versionType":"custom"}],"cpes":["cpe:2.3:o:amd:epyc_8024p_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_8024pn_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_8124p_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_8124pn_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_8224p_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_8224pn_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_8324p_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_8324pn_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_8434p_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_8434pn_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_8534p_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_8534pn_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9124_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9174f_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9184x_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9224_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9254_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9274f_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9334_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9354_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9354p_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9374f_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9384x_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9454_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9454p_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9474f_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9534_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9554_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9554p_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9634_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9654_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9654p_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9684x_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9734_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9754_firmware:-:*:*:*:*:*:*:*","cpe:2.3:o:amd:epyc_9754s_firmware:-:*:*:*:*:*:*:*"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-08-14T13:13:17.696799Z","id":"CVE-2023-20591","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-665","type":"CWE","lang":"en","description":"CWE-665 Improper Initialization"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-03-13T16:41:15.645Z"}}]}}}