{"id":"CVE-2024-36311","aliases":["EUVD-2024-55411","GHSA-x6hx-69p4-ccw5"],"status":"published","title":"A Time-of-check time-of-use (TOCTOU) race condition in the SMM communications buffer could allow...","description":"A Time-of-check time-of-use (TOCTOU) race condition in the SMM communications buffer could allow a privileged attacker to bypass input validation and perform an out of bounds read or write, potentially resulting in loss of confidentiality, integrity, or availability.","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:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00141,"percentile":0.03516,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-367"],"published":"2026-02-10T19:50:06Z","modified":"2026-06-17T07:36:30Z","products":[{"vendor":"amd","product":"amd ryzen™ 7000 series desktop processors"},{"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™ embedded 7000 series processors"}],"references":[{"url":"https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4013.html"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-36311"},{"url":"https://github.com/advisories/GHSA-x6hx-69p4-ccw5"}],"sources":{"cve":[{"id":"CVE-2024-36311","description":"A Time-of-check time-of-use (TOCTOU) race condition in the SMM communications buffer could allow a privileged attacker to bypass input validation and perform an out of bounds read or write, potentially resulting in loss of confidentiality, integrity, or availability.","status":"published","published":"2026-02-10T19:50:06.871Z","modified":"2026-02-10T20:43:15.862Z","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:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:34:14.649724Z"}],"euvd":[{"id":"EUVD-2024-55411","description":"A Time-of-check time-of-use (TOCTOU) race condition in the SMM communications buffer could allow a privileged attacker to bypass input validation and perform an out of bounds read or write, potentially resulting in loss of confidentiality, integrity, or availability.","status":"published","published":"2026-02-10T19:50:06Z","modified":"2026-02-10T20:43:15Z","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:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T19:48:41.699812Z"}],"ghsa":[{"id":"GHSA-x6hx-69p4-ccw5","title":"A Time-of-check time-of-use (TOCTOU) race condition in the SMM communications buffer could allow...","description":"A Time-of-check time-of-use (TOCTOU) race condition in the SMM communications buffer could allow a privileged attacker to bypass input validation and perform an out of bounds read or write, potentially resulting in loss of confidentiality, integrity, or availability.","status":"published","published":"2026-02-10T21:31:30Z","modified":"2026-02-10T21:31:42Z","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:L/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"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T15:06:08.47148Z"}],"nvd":[{"id":"CVE-2024-36311","description":"A Time-of-check time-of-use (TOCTOU) race condition in the SMM communications buffer could allow a privileged attacker to bypass input validation and perform an out of bounds read or write, potentially resulting in loss of confidentiality, integrity, or availability.","status":"published","published":"2026-02-10T20:16:42.687Z","modified":"2026-06-17T07:36:30.21Z","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:L/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-367"],"updated_at":"2026-11-02T14:10:47.444899Z"}]}}