{"id":"CVE-2023-20599","aliases":["EUVD-2023-24778","GHSA-7rc6-r844-3mww"],"status":"published","title":"Improper register access control in ASP may allow a privileged attacker to perform unauthorized...","description":"Improper register access control in ASP may allow a privileged attacker to perform unauthorized access to ASP’s Crypto Co-Processor (CCP) registers from x86 resulting in potential loss of control of cryptographic key pointer/index leading to loss of integrity or confidentiality.","severity":{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00186,"percentile":0.08282,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1262"],"published":"2025-06-10T16:15:03Z","modified":"2026-06-17T05:30:24Z","products":[{"vendor":"amd","product":"amd athlon™ 3000 series mobile processors with radeon™ graphics"},{"vendor":"amd","product":"amd epyc™ 7002 series processors"},{"vendor":"amd","product":"amd epyc™ embedded 7002 series processors"},{"vendor":"amd","product":"amd epyc™ embedded 7003 series processors"},{"vendor":"amd","product":"amd ryzen™ 3000 series mobile processors with radeon™ graphics"},{"vendor":"amd","product":"amd ryzen™ embedded r1000 series processors"},{"vendor":"amd","product":"amd ryzen™ embedded r2000 series processors"},{"vendor":"amd","product":"amd ryzen™ embedded v1000 series processors"},{"vendor":"amd","product":"amd ryzen™ threadripper™ 3000 processors"},{"vendor":"amd","product":"amd ryzen™ threadripper™ pro 3000 wx processors"}],"references":[{"url":"https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-7039.html"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-20599"},{"url":"https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7039.html"},{"url":"https://github.com/advisories/GHSA-7rc6-r844-3mww"}],"sources":{"cve":[{"id":"CVE-2023-20599","description":"Improper register access control in ASP may allow a privileged attacker to perform unauthorized access to ASP’s Crypto Co-Processor (CCP) registers from x86 resulting in potential loss of control of cryptographic key pointer/index leading to loss of integrity or confidentiality.","status":"published","published":"2025-06-10T16:15:03.641Z","modified":"2026-02-26T17:51:02.287Z","cvss":[{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-1262"],"updated_at":"2026-11-02T14:35:13.368958Z"}],"euvd":[{"id":"EUVD-2023-24778","description":"Improper register access control in ASP may allow a privileged attacker to perform unauthorized access to ASP’s Crypto Co-Processor (CCP) registers from x86 resulting in potential loss of control of cryptographic key pointer/index leading to loss of integrity or confidentiality.","status":"published","published":"2025-06-10T16:15:03Z","modified":"2026-02-26T17:51:02Z","cvss":[{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T19:48:18.619892Z"}],"ghsa":[{"id":"GHSA-7rc6-r844-3mww","title":"Improper register access control in ASP may allow a privileged attacker to perform unauthorized...","description":"Improper register access control in ASP may allow a privileged attacker to perform unauthorized access to ASP’s Crypto Co-Processor (CCP) registers from x86, resulting in potential loss of control of cryptographic key pointer/index, leading to loss of integrity or confidentiality.","status":"published","published":"2025-06-10T18:32:26Z","modified":"2025-06-10T18:32:30Z","cvss":[{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-1262"],"updated_at":"2026-11-02T15:02:39.469785Z"}],"nvd":[{"id":"CVE-2023-20599","description":"Improper register access control in ASP may allow a privileged attacker to perform unauthorized access to ASP’s Crypto Co-Processor (CCP) registers from x86 resulting in potential loss of control of cryptographic key pointer/index leading to loss of integrity or confidentiality.","status":"published","published":"2025-06-10T17:17:51.013Z","modified":"2026-06-17T05:30:24.457Z","cvss":[{"version":"3.1","score":7.9,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-1262"],"updated_at":"2026-11-02T14:09:21.774456Z"}]}}