{"id":"CVE-2021-3452","aliases":["EUVD-2021-26775","GHSA-8f7w-9jvr-vccr"],"status":"published","title":"A potential vulnerability in the system shutdown SMI callback function in some ThinkPad models...","description":"A potential vulnerability in the system shutdown SMI callback function in some ThinkPad models may allow an attacker with local access and elevated privileges to execute arbitrary code.","severity":{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00273,"percentile":0.19755,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2021-07-16T20:30:16Z","modified":"2026-06-17T04:05:07Z","products":[{"vendor":"lenovo","product":"bios"},{"vendor":"lenovo","product":"thinkpad bios"}],"references":[{"url":"https://support.lenovo.com/us/en/product_security/LEN-65529","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3452"},{"url":"https://github.com/advisories/GHSA-8f7w-9jvr-vccr"}],"sources":{"cve":[{"id":"CVE-2021-3452","description":"A potential vulnerability in the system shutdown SMI callback function in some ThinkPad models may allow an attacker with local access and elevated privileges to execute arbitrary code.","status":"published","published":"2021-07-16T20:30:16Z","modified":"2024-08-03T16:53:17.62Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:33:03.671751Z"}],"euvd":[{"id":"EUVD-2021-26775","description":"A potential vulnerability in the system shutdown SMI callback function in some ThinkPad models may allow an attacker with local access and elevated privileges to execute arbitrary code.","status":"published","published":"2021-07-16T20:30:16Z","modified":"2024-08-03T16:53:17Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-03T03:25:13.052236Z"}],"ghsa":[{"id":"GHSA-8f7w-9jvr-vccr","title":"A potential vulnerability in the system shutdown SMI callback function in some ThinkPad models...","description":"A potential vulnerability in the system shutdown SMI callback function in some ThinkPad models may allow an attacker with local access and elevated privileges to execute arbitrary code.","status":"published","published":"2022-05-24T19:08:14Z","modified":"2023-01-30T05:00:50Z","updated_at":"2026-11-02T14:46:16.829694Z"}],"nvd":[{"id":"CVE-2021-3452","description":"A potential vulnerability in the system shutdown SMI callback function in some ThinkPad models may allow an attacker with local access and elevated privileges to execute arbitrary code.","status":"published","published":"2021-07-16T21:15:10.607Z","modified":"2026-06-17T04:05:07.913Z","cvss":[{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.7,"vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","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-20"],"updated_at":"2026-11-02T14:06:55.747384Z"}]}}