{"id":"CVE-2024-36343","aliases":["EUVD-2024-55591","GHSA-qjgc-hx5r-r632"],"status":"published","title":"Improper input validation in the System Management Mode (SMM) communications buffer could allow a...","description":"Improper input validation in the System Management Mode (SMM) communications buffer could allow a privileged attacker to perform an out of bounds read or write to a limited section of the Top of Memory Segment (TSEG) memory region, potentially resulting in loss of confidentiality or integrity.","severity":{"version":"4.0","score":4.6,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00186,"percentile":0.08268,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-124"],"published":"2026-05-19T21:03:09Z","modified":"2026-07-24T09:10:00Z","products":[{"vendor":"amd","product":"amd epyc™ 4004"},{"vendor":"amd","product":"amd epyc™ 4005"},{"vendor":"amd","product":"amd ryzen™ 6000 series processors with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ 7000 series desktop processors"},{"vendor":"amd","product":"amd ryzen™ 7040 series mobile processors with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ 7045 series mobile processors with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ 8000 series desktop processors"},{"vendor":"amd","product":"amd ryzen™ 9000 series desktop processors"},{"vendor":"amd","product":"amd ryzen™ 9000hx series mobile processors"},{"vendor":"amd","product":"amd ryzen™ ai 300 series processors"},{"vendor":"amd","product":"amd ryzen™ ai max"},{"vendor":"amd","product":"amd ryzen™ embedded 7000 series processors"},{"vendor":"amd","product":"amd ryzen™ embedded 8000 series processors"},{"vendor":"amd","product":"amd ryzen™ embedded 9000 series processors"},{"vendor":"amd","product":"amd ryzen™ embedded v3000 series processors"},{"vendor":"amd","product":"amd ryzen™ threadripper™ 7000 processors"},{"vendor":"amd","product":"amd ryzen™ threadripper™ pro 7000 wx-series processors"}],"references":[{"url":"https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3030.html"},{"url":"https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4017.html"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-36343"},{"url":"https://github.com/advisories/GHSA-qjgc-hx5r-r632"}],"sources":{"cve":[{"id":"CVE-2024-36343","description":"Improper input validation in the System Management Mode (SMM) communications buffer could allow a privileged attacker to perform an out of bounds read or write to a limited section of the Top of Memory Segment (TSEG) memory region, potentially resulting in loss of confidentiality or integrity.","status":"published","published":"2026-05-19T21:03:09.395Z","modified":"2026-05-20T13:46:23.737Z","cvss":[{"version":"4.0","score":4.6,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-124"],"updated_at":"2026-11-02T14:34:14.649724Z"}],"euvd":[{"id":"EUVD-2024-55591","description":"Improper input validation in the System Management Mode (SMM) communications buffer could allow a privileged attacker to perform an out of bounds read or write to a limited section of the Top of Memory Segment (TSEG) memory region, potentially resulting in loss of confidentiality or integrity.","status":"published","published":"2026-05-19T21:03:09Z","modified":"2026-05-20T13:46:23Z","cvss":[{"version":"4.0","score":4.6,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:21:14.831553Z"}],"ghsa":[{"id":"GHSA-qjgc-hx5r-r632","title":"Improper input 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to a limited section of the Top of Memory Segment (TSEG) memory region, potentially resulting in loss of confidentiality or integrity.","status":"published","published":"2026-05-19T22:16:35.42Z","modified":"2026-07-24T09:10:00.153Z","cvss":[{"version":"4.0","score":4.6,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"}],"cwes":["CWE-124"],"updated_at":"2026-11-02T14:10:47.77313Z"}]}}