{"id":"CVE-2023-20548","aliases":["EUVD-2023-24727","GHSA-pc33-gmp7-wv52"],"status":"published","title":"A Time-of-check time-of-use (TOCTOU) race condition in the AMD Secure Processor (ASP) could allow...","description":"A Time-of-check time-of-use (TOCTOU) race condition in the AMD Secure Processor (ASP) could allow an attacker to corrupt memory resulting in loss of integrity, confidentiality, or availability.","severity":{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00109,"percentile":0.0126,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-367"],"published":"2026-02-11T14:35:16Z","modified":"2026-06-17T05:30:17Z","products":[{"vendor":"amd","product":"amd instinct™ mi210"},{"vendor":"amd","product":"amd instinct™ mi250"},{"vendor":"amd","product":"amd instinct™ mi300a"},{"vendor":"amd","product":"amd instinct™ mi300x"},{"vendor":"amd","product":"amd radeon™ pro vii"},{"vendor":"amd","product":"amd radeon™ pro w5000 series graphics products"},{"vendor":"amd","product":"amd radeon™ rx 5000 series graphics products"},{"vendor":"amd","product":"amd radeon™ vii"},{"vendor":"amd","product":"radeon_pro_vii_firmware"},{"vendor":"amd","product":"radeon_software"},{"vendor":"amd","product":"radeon_vii_firmware"},{"vendor":"amd","product":"rocm"}],"references":[{"url":"https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6024.html","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-20548"},{"url":"https://github.com/advisories/GHSA-pc33-gmp7-wv52"}],"sources":{"cve":[{"id":"CVE-2023-20548","description":"A Time-of-check time-of-use (TOCTOU) race condition in the AMD Secure Processor (ASP) could allow an attacker to corrupt memory resulting in loss of integrity, confidentiality, or availability.","status":"published","published":"2026-02-11T14:35:16.063Z","modified":"2026-02-11T15:42:32.097Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L","level":"high","assessor":"cna"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:35:13.368958Z"}],"euvd":[{"id":"EUVD-2023-24727","description":"A Time-of-check time-of-use (TOCTOU) race condition in the AMD Secure Processor (ASP) could allow an attacker to corrupt memory resulting in loss of integrity, confidentiality, or availability.","status":"published","published":"2026-02-11T14:35:16Z","modified":"2026-02-11T15:42:32Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L","level":"high"}],"updated_at":"2026-11-02T19:48:40.797648Z"}],"ghsa":[{"id":"GHSA-pc33-gmp7-wv52","title":"A Time-of-check time-of-use (TOCTOU) race condition in the AMD Secure Processor (ASP) could allow...","description":"A Time-of-check time-of-use (TOCTOU) race condition in the AMD Secure Processor (ASP) could allow an attacker to corrupt memory resulting in loss of integrity, confidentiality, or availability.","status":"published","published":"2026-02-11T15:30:27Z","modified":"2026-03-05T18:31:34Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L/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":"high"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T15:06:27.497427Z"}],"nvd":[{"id":"CVE-2023-20548","description":"A Time-of-check time-of-use (TOCTOU) race condition in the AMD Secure Processor (ASP) could allow an attacker to corrupt memory resulting in loss of integrity, confidentiality, or availability.","status":"published","published":"2026-02-11T15:16:11.337Z","modified":"2026-06-17T05:30:17.687Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L/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":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:09:27.733183Z"}]}}