{"id":"CVE-2025-62862","aliases":["EUVD-2025-203819","GHSA-rw9h-q55r-xq4f"],"status":"published","title":"Ampere AmpereOne AC03 devices before 3.5.9.3, AmpereOne AC04 devices before 4.4.5.2, and...","description":"Ampere AmpereOne AC03 devices before 3.5.9.3, AmpereOne AC04 devices before 4.4.5.2, and AmpereOne M devices before 5.4.5.1 allow an incorrectly formed SMC call to UEFI-MM Boot Error Record Table driver that could result in (1) an out-of-bounds read which leaks Secure-EL0 information to a process running in Non-Secure state or (2) an out-of-bounds write which corrupts Secure or Non-Secure memory, limited to memory mapped to UEFI-MM Secure Partition by the Secure Partition Manager.","severity":{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-09","score":0.00125,"percentile":0.02209,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125","CWE-787"],"published":"2025-12-16T00:00:00Z","modified":"2026-10-13T11:10:00Z","products":[{"vendor":"amperecomputing","product":"ampereone_a128-34x_firmware"},{"vendor":"amperecomputing","product":"ampereone_a144-24x_firmware"},{"vendor":"amperecomputing","product":"ampereone_a144-26m_firmware"},{"vendor":"amperecomputing","product":"ampereone_a144-27x_firmware"},{"vendor":"amperecomputing","product":"ampereone_a144-33m_firmware"},{"vendor":"amperecomputing","product":"ampereone_a160-28m_firmware"},{"vendor":"amperecomputing","product":"ampereone_a160-28x_firmware"},{"vendor":"amperecomputing","product":"ampereone_a192-26m_firmware"},{"vendor":"amperecomputing","product":"ampereone_a192-26x_firmware"},{"vendor":"amperecomputing","product":"ampereone_a192-32m_firmware"},{"vendor":"amperecomputing","product":"ampereone_a192-32x_firmware"},{"vendor":"amperecomputing","product":"ampereone_a96-36m_firmware"},{"vendor":"amperecomputing","product":"ampereone_a96-36x_firmware"}],"references":[{"url":"https://amperecomputing.com/products/product-security","tags":["Vendor Advisory"]},{"url":"https://amperecomputing.com/products/security-bulletins/amp-sb-0007","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-62862"},{"url":"https://github.com/advisories/GHSA-rw9h-q55r-xq4f"}],"sources":{"cve":[{"id":"CVE-2025-62862","description":"Ampere AmpereOne AC03 devices before 3.5.9.3, AmpereOne AC04 devices before 4.4.5.2, and AmpereOne M devices before 5.4.5.1 allow an incorrectly formed SMC call to UEFI-MM Boot Error Record Table driver that could result in (1) an out-of-bounds read which leaks Secure-EL0 information to a process running in Non-Secure state or (2) an out-of-bounds write which corrupts Secure or Non-Secure memory, limited to memory mapped to UEFI-MM Secure Partition by the Secure Partition Manager.","status":"published","published":"2025-12-16T00:00:00Z","modified":"2025-12-17T18:51:40.78Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L","level":"medium","assessor":"adp"}],"cwes":["CWE-125","CWE-787"],"updated_at":"2026-11-02T14:32:54.87586Z"}],"euvd":[{"id":"EUVD-2025-203819","description":"Ampere AmpereOne AC03 devices before 3.5.9.3, AmpereOne AC04 devices before 4.4.5.2, and AmpereOne M devices before 5.4.5.1 allow an incorrectly formed SMC call to UEFI-MM Boot Error Record Table driver that could result in (1) an out-of-bounds read which leaks Secure-EL0 information to a process running in Non-Secure state or (2) an out-of-bounds write which corrupts Secure or Non-Secure memory, limited to memory mapped to UEFI-MM Secure Partition by the Secure Partition Manager.","status":"published","published":"2025-12-16T00:00:00Z","modified":"2025-12-17T18:51:40Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T19:49:03.481924Z"}],"ghsa":[{"id":"GHSA-rw9h-q55r-xq4f","title":"Ampere AmpereOne AC03 devices before 3.5.9.3, AmpereOne AC04 devices before 4.4.5.2, and...","description":"Ampere AmpereOne AC03 devices before 3.5.9.3, AmpereOne AC04 devices before 4.4.5.2, and AmpereOne M devices before 5.4.5.1 allow an incorrectly formed SMC call to UEFI-MM Boot Error Record Table driver that could result in (1) an out-of-bounds read which leaks Secure-EL0 information to a process running in Non-Secure state or (2) an out-of-bounds write which corrupts Secure or Non-Secure memory, limited to memory mapped to UEFI-MM Secure Partition by the Secure Partition Manager.","status":"published","published":"2025-12-16T18:31:35Z","modified":"2025-12-17T21:31:53Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L","level":"medium"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:05:15.720894Z"}],"nvd":[{"id":"CVE-2025-62862","description":"Ampere AmpereOne AC03 devices before 3.5.9.3, AmpereOne AC04 devices before 4.4.5.2, and AmpereOne M devices before 5.4.5.1 allow an incorrectly formed SMC call to UEFI-MM Boot Error Record Table driver that could result in (1) an out-of-bounds read which leaks Secure-EL0 information to a process running in Non-Secure state or (2) an out-of-bounds write which corrupts Secure or Non-Secure memory, limited to memory mapped to UEFI-MM Secure Partition by the Secure Partition Manager.","status":"published","published":"2025-12-16T17:16:10.32Z","modified":"2026-10-13T11:10:00.203Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-125","CWE-787"],"updated_at":"2026-11-02T14:11:51.309584Z"}]}}