{"id":"CVE-2021-26379","state":"PUBLISHED","title":"Insufficient input validation of mailbox data in the","description":"Insufficient input validation of mailbox data in the\nSMU may allow an attacker to coerce the SMU to corrupt SMRAM, potentially\nleading to a loss of integrity and privilege escalation.\n\n\n\n","publishedAt":"2023-05-09T18:36:18.303Z","updatedAt":"2025-01-28T16:02:38.949Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"AMD","products":["AMD 2nd Gen AMD EPYC™ ","AMD 3rd Gen AMD EPYC™ "],"affected":[{"vendor":"AMD","product":"2nd Gen AMD EPYC™ ","packageName":"AGESA","defaultStatus":"unaffected","versions":[{"version":"various ","status":"affected"}],"platforms":["x86"]},{"vendor":"AMD","product":"3rd Gen AMD EPYC™ ","packageName":"AGESA","defaultStatus":"unaffected","versions":[{"version":"various ","status":"affected"}],"platforms":["x86"]}],"references":["https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3001"],"weaknesses":[],"ingestedAt":"2026-10-29T19:48:13.210Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/26xxx/CVE-2021-26379.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-26379","state":"PUBLISHED","datePublished":"2023-05-09T18:36:18.303Z","dateUpdated":"2025-01-28T16:02:38.949Z","assignerShortName":"AMD","assignerOrgId":"b58fc414-a1e4-4f92-9d70-1add41838648","dateReserved":"2021-01-29T21:24:26.158Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"Insufficient input validation of mailbox data in the\nSMU may allow an attacker to coerce the SMU to corrupt SMRAM, potentially\nleading to a loss of integrity and privilege escalation.\n\n\n\n"}],"affected":[{"vendor":"AMD","product":"2nd Gen AMD EPYC™ ","packageName":"AGESA","defaultStatus":"unaffected","versions":[{"version":"various ","status":"affected"}],"platforms":["x86"]},{"vendor":"AMD","product":"3rd Gen AMD EPYC™ ","packageName":"AGESA","defaultStatus":"unaffected","versions":[{"version":"various ","status":"affected"}],"platforms":["x86"]}],"references":[{"url":"https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3001","tags":["vendor-advisory"]}],"providerMetadata":{"shortName":"AMD","orgId":"b58fc414-a1e4-4f92-9d70-1add41838648","dateUpdated":"2023-05-09T18:50:00.247Z"},"datePublic":"2023-05-09T16:30:00.000Z","source":{"advisory":"AMD-SB-3001","discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3001","tags":["vendor-advisory","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T20:26:25.077Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.8,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-01-28T16:02:33.399399Z","id":"CVE-2021-26379","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"type":"CWE","lang":"en","description":"CWE-noinfo Not enough information"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-01-28T16:02:38.949Z"}}]}}}