{"id":"CVE-2021-26369","aliases":["EUVD-2021-13175","GHSA-xx44-254w-m8vr"],"status":"published","title":"A malicious or compromised UApp or ABL may be used by an attacker to send a malformed system call...","description":"A malicious or compromised UApp or ABL may be used by an attacker to send a malformed system call to the bootloader, resulting in out-of-bounds memory accesses.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00238,"percentile":0.14987,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119"],"published":"2022-05-12T17:07:32Z","modified":"2026-06-17T03:43:15Z","products":[{"vendor":"amd","product":"athlon_3050ge_firmware"},{"vendor":"amd","product":"athlon_3150g_firmware"},{"vendor":"amd","product":"athlon_3150ge_firmware"},{"vendor":"amd","product":"athlon™ series"},{"vendor":"amd","product":"radeon_software"},{"vendor":"amd","product":"ryzen_3_2200u_firmware"},{"vendor":"amd","product":"ryzen_3_2300u_firmware"},{"vendor":"amd","product":"ryzen_3_3100_firmware"},{"vendor":"amd","product":"ryzen_3_3300g_firmware"},{"vendor":"amd","product":"ryzen_3_3300x_firmware"},{"vendor":"amd","product":"ryzen_3_5125c_firmware"},{"vendor":"amd","product":"ryzen_3_5400u_firmware"},{"vendor":"amd","product":"ryzen_3_5425c_firmware"},{"vendor":"amd","product":"ryzen_3_5425u_firmware"},{"vendor":"amd","product":"ryzen_5_2500u_firmware"},{"vendor":"amd","product":"ryzen_5_2600_firmware"},{"vendor":"amd","product":"ryzen_5_2600h_firmware"},{"vendor":"amd","product":"ryzen_5_2600x_firmware"},{"vendor":"amd","product":"ryzen_5_3400g_firmware"},{"vendor":"amd","product":"ryzen_5_3450g_firmware"},{"vendor":"amd","product":"ryzen_5_3600_firmware"},{"vendor":"amd","product":"ryzen_5_3600x_firmware"},{"vendor":"amd","product":"ryzen_5_5600h_firmware"},{"vendor":"amd","product":"ryzen_5_5600hs_firmware"},{"vendor":"amd","product":"ryzen_5_5600u_firmware"},{"vendor":"amd","product":"ryzen_5_5600x_firmware"},{"vendor":"amd","product":"ryzen_5_5625c_firmware"},{"vendor":"amd","product":"ryzen_5_5625u_firmware"},{"vendor":"amd","product":"ryzen_5_5700g_firmware"},{"vendor":"amd","product":"ryzen_5_5700ge_firmware"},{"vendor":"amd","product":"ryzen_7_2700_firmware"},{"vendor":"amd","product":"ryzen_7_2700u_firmware"},{"vendor":"amd","product":"ryzen_7_2700x_firmware"},{"vendor":"amd","product":"ryzen_7_2800h_firmware"},{"vendor":"amd","product":"ryzen_7_3700x_firmware"},{"vendor":"amd","product":"ryzen_7_3800x_firmware"},{"vendor":"amd","product":"ryzen_7_5800h_firmware"},{"vendor":"amd","product":"ryzen_7_5800hs_firmware"},{"vendor":"amd","product":"ryzen_7_5800u_firmware"},{"vendor":"amd","product":"ryzen_7_5825c_firmware"},{"vendor":"amd","product":"ryzen_7_5825u_firmware"},{"vendor":"amd","product":"ryzen_9_3900x_firmware"},{"vendor":"amd","product":"ryzen_9_3950x_firmware"},{"vendor":"amd","product":"ryzen_9_5900hs_firmware"},{"vendor":"amd","product":"ryzen_9_5900hx_firmware"},{"vendor":"amd","product":"ryzen_9_5980hs_firmware"},{"vendor":"amd","product":"ryzen_9_5980hx_firmware"},{"vendor":"amd","product":"ryzen_threadripper_2920x_firmware"},{"vendor":"amd","product":"ryzen_threadripper_2950x_firmware"},{"vendor":"amd","product":"ryzen_threadripper_2970wx_firmware"},{"vendor":"amd","product":"ryzen_threadripper_2990wx_firmware"},{"vendor":"amd","product":"ryzen™ series"}],"references":[{"url":"https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26369"},{"url":"https://github.com/advisories/GHSA-xx44-254w-m8vr"}],"sources":{"cve":[{"id":"CVE-2021-26369","description":"A malicious or compromised UApp or ABL may be used by an attacker to send a malformed system call to the bootloader, resulting in out-of-bounds memory accesses.","status":"published","published":"2022-05-12T17:07:32.274Z","modified":"2024-09-16T19:51:13.979Z","updated_at":"2026-11-02T14:32:57.368269Z"}],"euvd":[{"id":"EUVD-2021-13175","description":"A malicious or compromised UApp or ABL may be used by an attacker to send a malformed system call to the bootloader, resulting in out-of-bounds memory accesses.","status":"published","published":"2022-05-12T17:07:32Z","modified":"2024-09-16T19:51:13Z","updated_at":"2026-11-03T00:55:19.533306Z"}],"ghsa":[{"id":"GHSA-xx44-254w-m8vr","title":"A malicious or compromised UApp or ABL may be used by an attacker to send a malformed system call...","description":"A malicious or compromised UApp or ABL may be used by an attacker to send a malformed system call to the bootloader, resulting in out-of-bounds memory accesses.","status":"published","published":"2022-05-13T00:00:36Z","modified":"2023-02-01T05:02:22Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:49:53.83549Z"}],"nvd":[{"id":"CVE-2021-26369","description":"A malicious or compromised UApp or ABL may be used by an attacker to send a malformed system call to the bootloader, resulting in out-of-bounds memory accesses.","status":"published","published":"2022-05-12T18:16:53.257Z","modified":"2026-06-17T03:43:15.167Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:07:06.029737Z"}]}}
