{"id":"CVE-2021-46759","aliases":["EUVD-2021-33415","GHSA-gp8r-64c4-ggqw"],"status":"published","title":"Improper syscall input validation in AMD TEE\n(Trusted Execution Environment) may allow an...","description":"Improper syscall input validation in AMD TEE\n(Trusted Execution Environment) may allow an attacker with physical access and\ncontrol of a Uapp that runs under the bootloader to reveal the contents of the\nASP (AMD Secure Processor) bootloader accessible memory to a serial port,\nresulting in a potential loss of integrity.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00284,"percentile":0.21034,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2023-05-09T19:00:53Z","modified":"2026-06-17T04:15:28Z","products":[{"vendor":"amd","product":"athlon_gold_3150g_firmware"},{"vendor":"amd","product":"athlon_gold_3150ge_firmware"},{"vendor":"amd","product":"athlon_silver_3050ge_firmware"},{"vendor":"amd","product":"athlon™ 3000 series mobile processors with radeon™ graphics   “pollock”"},{"vendor":"amd","product":"athlon™ 3000 series mobile processors with radeon™ graphics “dali”/”dali” 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2000 series desktop processors “raven ridge” am4"},{"vendor":"amd","product":"ryzen™ 2000 series mobile processors “raven ridge” fp5"},{"vendor":"amd","product":"ryzen™ 3000 series mobile processor, 2nd gen amd ryzen™ mobile processors with radeon™ graphics “picasso”"},{"vendor":"amd","product":"ryzen™ 3000 series mobile processors with radeon™ graphics “renoir”"},{"vendor":"amd","product":"ryzen™ 5000 series desktop processor with radeon™ graphics  “cezanne” am4"},{"vendor":"amd","product":"ryzen™ 5000 series mobile processors with radeon™ graphics “cezanne”"},{"vendor":"amd","product":"ryzen™ 5000 series mobile processors with radeon™ graphics “lucienne”"}],"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-2021-46759"},{"url":"https://github.com/advisories/GHSA-gp8r-64c4-ggqw"}],"sources":{"cve":[{"id":"CVE-2021-46759","description":"Improper syscall input validation in AMD TEE\n(Trusted Execution Environment) may allow an attacker with physical access and\ncontrol of a Uapp that runs under the bootloader to reveal the contents of the\nASP (AMD Secure Processor) bootloader accessible memory to a serial port,\nresulting in a potential loss of integrity.\n\n\n\n\n\n\n\n\n\n\n\n\n","status":"published","published":"2023-05-09T19:00:53.047Z","modified":"2025-01-27T17:34:38.069Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:33:02.930115Z"}],"euvd":[{"id":"EUVD-2021-33415","description":"Improper syscall input validation in AMD TEE\n(Trusted Execution Environment) may allow an attacker with physical access and\ncontrol of a Uapp that runs under the bootloader to reveal the contents of the\nASP (AMD Secure Processor) bootloader accessible memory to a serial port,\nresulting in a potential loss of integrity.\n\n\n\n\n\n\n\n\n\n\n\n\n","status":"published","published":"2023-05-09T19:00:53Z","modified":"2025-01-27T17:34:38Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"medium"}],"updated_at":"2026-11-03T00:04:12.665174Z"}],"ghsa":[{"id":"GHSA-gp8r-64c4-ggqw","title":"Improper syscall input validation in AMD TEE\n(Trusted Execution Environment) may allow an...","description":"Improper syscall input validation in AMD TEE\n(Trusted Execution Environment) may allow an attacker with physical access and\ncontrol of a Uapp that runs under the bootloader to reveal the contents of the\nASP (AMD Secure Processor) bootloader accessible memory to a serial port,\nresulting in a potential loss of integrity.\n\n\n\n\n\n\n\n\n\n\n\n\n","status":"published","published":"2023-05-09T21:30:23Z","modified":"2024-04-04T03:58:01Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"medium"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:56:20.113325Z"}],"nvd":[{"id":"CVE-2021-46759","description":"Improper syscall input validation in AMD TEE\n(Trusted Execution Environment) may allow an attacker with physical access and\ncontrol of a Uapp that runs under the bootloader to reveal the contents of the\nASP (AMD Secure Processor) bootloader accessible memory to a serial port,\nresulting in a potential loss of integrity.\n\n\n\n\n\n\n\n\n\n\n\n\n","status":"published","published":"2023-05-09T20:15:12.24Z","modified":"2026-06-17T04:15:28.247Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"primary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:07:07.764332Z"}]}}