{"id":"CVE-2024-42446","aliases":["EUVD-2024-54476","GHSA-pgm8-5pfj-3v9h"],"status":"published","title":"TOCTOU in SmmWhea","description":"APTIOV contains a vulnerability in BIOS where an attacker may cause a Time-of-check Time-of-use (TOCTOU) Race Condition by local means. Successful exploitation of this vulnerability may lead to arbitrary code execution.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00135,"percentile":0.03019,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-367"],"published":"2025-05-13T14:02:10Z","modified":"2026-06-17T07:49:27Z","products":[{"vendor":"ami","product":"aptio_v"},{"vendor":"ami","product":"aptiov"}],"references":[{"url":"https://go.ami.com/hubfs/Security%20Advisories/2025/AMI-SA-2025004.pdf","tags":["Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-42446"},{"url":"https://github.com/advisories/GHSA-pgm8-5pfj-3v9h"}],"sources":{"cve":[{"id":"CVE-2024-42446","title":"TOCTOU in SmmWhea","description":"APTIOV contains a vulnerability in BIOS where an attacker may cause a Time-of-check Time-of-use (TOCTOU) Race Condition by local means. Successful exploitation of this vulnerability may lead to arbitrary code execution.","status":"published","published":"2025-05-13T14:02:10.628Z","modified":"2025-05-13T15:16:25.056Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:34:03.00063Z"}],"euvd":[{"id":"EUVD-2024-54476","description":"APTIOV contains a vulnerability in BIOS where an attacker may cause a Time-of-check Time-of-use (TOCTOU) Race Condition by local means. Successful exploitation of this vulnerability may lead to arbitrary code execution.","status":"published","published":"2025-05-13T14:02:10Z","modified":"2025-05-13T15:16:25Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T20:32:48.910403Z"}],"ghsa":[{"id":"GHSA-pgm8-5pfj-3v9h","title":"APTIOV contains a vulnerability in BIOS where an attacker may cause a Time-of-check Time-of-use ...","description":"APTIOV contains a vulnerability in BIOS where an attacker may cause a Time-of-check Time-of-use (TOCTOU) Race Condition by local means. Successful exploitation of this vulnerability may lead to arbitrary code execution.","status":"published","published":"2025-05-13T15:32:16Z","modified":"2025-05-13T15:32:23Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T15:02:15.310117Z"}],"nvd":[{"id":"CVE-2024-42446","description":"APTIOV contains a vulnerability in BIOS where an attacker may cause a Time-of-check Time-of-use (TOCTOU) Race Condition by local means. Successful exploitation of this vulnerability may lead to arbitrary code execution.","status":"published","published":"2025-05-13T14:15:19.497Z","modified":"2026-06-17T07:49:27.887Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-367"],"updated_at":"2026-11-02T14:10:46.40251Z"}]}}