{"id":"CVE-2021-46760","aliases":["EUVD-2021-33416","GHSA-qh8v-25c7-7m9h"],"status":"published","title":"A malicious or compromised UApp or ABL can send\na malformed system call to the bootloader, which...","description":"A malicious or compromised UApp or ABL can send\na malformed system call to the bootloader, which may result in an out-of-bounds\nmemory access that may potentially lead to an attacker leaking sensitive\ninformation or achieving code execution.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00776,"percentile":0.5611,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119","CWE-770"],"published":"2023-05-09T19:01:05Z","modified":"2026-06-17T04:15:28Z","products":[{"vendor":"amd","product":"3rd gen amd ryzen™ threadripper™ processors “castle peak” hedt"},{"vendor":"amd","product":"ryzen_3945wx_firmware"},{"vendor":"amd","product":"ryzen_3955wx_firmware"},{"vendor":"amd","product":"ryzen_3960x_firmware"},{"vendor":"amd","product":"ryzen_3970x_firmware"},{"vendor":"amd","product":"ryzen_3975wx_firmware"},{"vendor":"amd","product":"ryzen_3990x_firmware"},{"vendor":"amd","product":"ryzen_3995wx_firmware"},{"vendor":"amd","product":"ryzen™ threadripper™ pro processors “castle peak” ws"}],"references":[{"url":"https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001","tags":["vendor-advisory","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-46760"},{"url":"https://github.com/advisories/GHSA-qh8v-25c7-7m9h"}],"sources":{"cve":[{"id":"CVE-2021-46760","description":"A malicious or compromised UApp or ABL can send\na malformed system call to the bootloader, which may result in an out-of-bounds\nmemory access that may potentially lead to an attacker leaking sensitive\ninformation or achieving code execution.\n\n\n\n\n","status":"published","published":"2023-05-09T19:01:05.377Z","modified":"2025-01-27T17:29:32.464Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:33:03.320536Z"}],"euvd":[{"id":"EUVD-2021-33416","description":"A malicious or compromised UApp or ABL can send\na malformed system call to the bootloader, which may result in an out-of-bounds\nmemory access that may potentially lead to an attacker leaking sensitive\ninformation or achieving code execution.\n\n\n\n\n","status":"published","published":"2023-05-09T19:01:05Z","modified":"2025-01-27T17:29:32Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T00:04:12.665174Z"}],"ghsa":[{"id":"GHSA-qh8v-25c7-7m9h","title":"A malicious or compromised UApp or ABL can send\na malformed system call to the bootloader, which...","description":"A malicious or compromised UApp or ABL can send\na malformed system call to the bootloader, which may result in an out-of-bounds\nmemory access that may potentially lead to an attacker leaking sensitive\ninformation or achieving code execution.\n\n\n\n\n","status":"published","published":"2023-05-09T21:30:23Z","modified":"2025-01-27T18:31:55Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-119","CWE-770"],"updated_at":"2026-11-02T14:59:41.697715Z"}],"nvd":[{"id":"CVE-2021-46760","description":"A malicious or compromised UApp or ABL can send\na malformed system call to the bootloader, which may result in an out-of-bounds\nmemory access that may potentially lead to an attacker leaking sensitive\ninformation or achieving code execution.\n\n\n\n\n","status":"published","published":"2023-05-09T20:15:12.283Z","modified":"2026-06-17T04:15:28.627Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-119","CWE-770"],"updated_at":"2026-11-02T14:07:07.764332Z"}]}}