{"id":"CVE-2020-8321","aliases":["EUVD-2020-29188","GHSA-7939-9jcj-5hqr"],"status":"published","title":"A potential vulnerability in the SMI callback function used in the System Lock Preinstallation...","description":"A potential vulnerability in the SMI callback function used in the System Lock Preinstallation driver in some Lenovo Notebook and ThinkStation models may allow arbitrary code execution.","severity":{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00345,"percentile":0.28292,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2020-06-09T19:50:35Z","modified":"2026-06-17T03:26:15Z","products":[{"vendor":"lenovo","product":"130-14ast_firmware"},{"vendor":"lenovo","product":"130-14ikb_firmware"},{"vendor":"lenovo","product":"130-15ast_firmware"},{"vendor":"lenovo","product":"130-15ikb_firmware"},{"vendor":"lenovo","product":"320c-15ikb_firmware"},{"vendor":"lenovo","product":"330-14igm_firmware"},{"vendor":"lenovo","product":"330-14ikb_firmware"},{"vendor":"lenovo","product":"330-14ikbr_firmware"},{"vendor":"lenovo","product":"330-15arr_firmware"},{"vendor":"lenovo","product":"330-15arr_touch_firmware"},{"vendor":"lenovo","product":"330-15ich_firmware"},{"vendor":"lenovo","product":"330-15igm_firmware"},{"vendor":"lenovo","product":"330-15ikb_firmware"},{"vendor":"lenovo","product":"330-15ikbr_firmware"},{"vendor":"lenovo","product":"330-15ikbr_touch_firmware"},{"vendor":"lenovo","product":"330-17ich_firmware"},{"vendor":"lenovo","product":"330-17ikb_firmware"},{"vendor":"lenovo","product":"330-17ikbr_firmware"},{"vendor":"lenovo","product":"330c-14ikb_firmware"},{"vendor":"lenovo","product":"330c-15ikb_firmware"},{"vendor":"lenovo","product":"330c-15ikbr_firmware"},{"vendor":"lenovo","product":"340c-15igm_firmware"},{"vendor":"lenovo","product":"340c-15ikb_firmware"},{"vendor":"lenovo","product":"340c-15iwl_firmware"},{"vendor":"lenovo","product":"530s-14arr_firmware"},{"vendor":"lenovo","product":"530s-14ikb_firmware"},{"vendor":"lenovo","product":"530s-14iwl_firmware"},{"vendor":"lenovo","product":"530s-15ikb_firmware"},{"vendor":"lenovo","product":"530s-15iwl_firmware"},{"vendor":"lenovo","product":"720s-13arr_firmware"},{"vendor":"lenovo","product":"720s-14ikbr_firmware"},{"vendor":"lenovo","product":"bios"},{"vendor":"lenovo","product":"c340-14api_firmware"},{"vendor":"lenovo","product":"c340-14iml_firmware"},{"vendor":"lenovo","product":"c340-14iwl_firmware"},{"vendor":"lenovo","product":"c340-15iil_firmware"},{"vendor":"lenovo","product":"c340-15iml_firmware"},{"vendor":"lenovo","product":"c340-15iwl_firmware"},{"vendor":"lenovo","product":"d330-10igm_firmware"},{"vendor":"lenovo","product":"d335-10igm_firmware"},{"vendor":"lenovo","product":"e4-14arr_firmware"},{"vendor":"lenovo","product":"e43-80_kbl_firmware"},{"vendor":"lenovo","product":"flex-14iwl_firmware"},{"vendor":"lenovo","product":"flex-15iwl_firmware"},{"vendor":"lenovo","product":"flex_6-1470_firmware"},{"vendor":"lenovo","product":"flex_6-14arr_firmware"},{"vendor":"lenovo","product":"flex_6-14ikb_firmware"},{"vendor":"lenovo","product":"ideapad_3_14_firmware"},{"vendor":"lenovo","product":"ideapad_3_14iil05_firmware"},{"vendor":"lenovo","product":"ideapad_3_15_firmware"},{"vendor":"lenovo","product":"ideapad_3_15iil05_firmware"},{"vendor":"lenovo","product":"ideapad_3_17iml05_firmware"},{"vendor":"lenovo","product":"ideapad_5_15iil05_firmware"},{"vendor":"lenovo","product":"k43c-80_firmware"},{"vendor":"lenovo","product":"l340-15api_firmware"},{"vendor":"lenovo","product":"l340-15api_touch_firmware"},{"vendor":"lenovo","product":"l340-15irh_firmware"},{"vendor":"lenovo","product":"l340-15iwl_touch_firmware"},{"vendor":"lenovo","product":"l340-17api_firmware"},{"vendor":"lenovo","product":"l340-17irh_firmware"},{"vendor":"lenovo","product":"l340-17iwl_firmware"},{"vendor":"lenovo","product":"l3_15iml05_firmware"},{"vendor":"lenovo","product":"legion_y530-15ich-1060_firmware"},{"vendor":"lenovo","product":"legion_y530-15ich_firmware"},{"vendor":"lenovo","product":"legion_y540-15_pg0_firmware"},{"vendor":"lenovo","product":"legion_y540-15irh_firmware"},{"vendor":"lenovo","product":"legion_y540-17_pg0_firmware"},{"vendor":"lenovo","product":"legion_y540-17irh_firmware"},{"vendor":"lenovo","product":"legion_y545_firmware"},{"vendor":"lenovo","product":"legion_y545_pg0_firmware"},{"vendor":"lenovo","product":"legion_y7000_2019_firmware"},{"vendor":"lenovo","product":"legion_y7000_pg0_firmware"},{"vendor":"lenovo","product":"legion_y7000p-1060_firmware"},{"vendor":"lenovo","product":"legion_y7000p_2019_firmware"},{"vendor":"lenovo","product":"legion_y7000p_pg0_firmware"},{"vendor":"lenovo","product":"legion_y730-15ich_firmware"},{"vendor":"lenovo","product":"legion_y730-17ich_firmware"},{"vendor":"lenovo","product":"legion_y740-15ichg_firmware"},{"vendor":"lenovo","product":"legion_y740-15irhg_firmware"},{"vendor":"lenovo","product":"legion_y740-17ichg_firmware"},{"vendor":"lenovo","product":"legion_y740-17irhg_firmware"},{"vendor":"lenovo","product":"legion_y9000k_2019_firmware"},{"vendor":"lenovo","product":"legion_y9000p_2019_firmware"},{"vendor":"lenovo","product":"lenovo_e41-25_firmware"},{"vendor":"lenovo","product":"lenovo_v320-17ikb_firmware"},{"vendor":"lenovo","product":"lenovo_v720-14ikb_firmware"},{"vendor":"lenovo","product":"rescuer_y7000\\(1060\\)_firmware"},{"vendor":"lenovo","product":"rescuer_y7000_firmware"},{"vendor":"lenovo","product":"rescuer_y7000p\\(1060\\)_firmware"},{"vendor":"lenovo","product":"rescuer_y7000p_firmware"},{"vendor":"lenovo","product":"s145-14_firmware"},{"vendor":"lenovo","product":"s145-14igm_firmware"},{"vendor":"lenovo","product":"s145-14ikb_firmware"},{"vendor":"lenovo","product":"s145-14iwl_firmware"},{"vendor":"lenovo","product":"s145-15igm_firmware"},{"vendor":"lenovo","product":"s145-15ikb_firmware"},{"vendor":"lenovo","product":"s145-15iwl_firmware"},{"vendor":"lenovo","product":"s340-13iml_firmware"},{"vendor":"lenovo","product":"s340-14_firmware"},{"vendor":"lenovo","product":"s340-14api_firmware"},{"vendor":"lenovo","product":"s340-14iil_firmware"},{"vendor":"lenovo","product":"s340-14iml_firmware"},{"vendor":"lenovo","product":"s340-14iwl_firmware"},{"vendor":"lenovo","product":"s340-14iwl_touch_firmware"},{"vendor":"lenovo","product":"s340-15api_firmware"},{"vendor":"lenovo","product":"s340-15iml_firmware"},{"vendor":"lenovo","product":"s340-15iwl_firmware"},{"vendor":"lenovo","product":"s340-15iwl_touch_firmware"},{"vendor":"lenovo","product":"s530-13iml_firmware"},{"vendor":"lenovo","product":"s530-13iwl_firmware"},{"vendor":"lenovo","product":"s540-14api_firmware"},{"vendor":"lenovo","product":"s540-14iml_firmware"},{"vendor":"lenovo","product":"s540-14iwl_firmware"},{"vendor":"lenovo","product":"s540-14iwl_touch_firmware"},{"vendor":"lenovo","product":"s540-15iml_firmware"},{"vendor":"lenovo","product":"s540-15iwl_firmware"},{"vendor":"lenovo","product":"s540-15iwl_gtx_firmware"},{"vendor":"lenovo","product":"s550-14iil_firmware"},{"vendor":"lenovo","product":"thinkstation_p410_firmware"},{"vendor":"lenovo","product":"thinkstation_p500_firmware"},{"vendor":"lenovo","product":"thinkstation_p510_firmware"},{"vendor":"lenovo","product":"thinkstation_p520_firmware"},{"vendor":"lenovo","product":"thinkstation_p520c_firmware"},{"vendor":"lenovo","product":"thinkstation_p700_firmware"},{"vendor":"lenovo","product":"thinkstation_p710_firmware"},{"vendor":"lenovo","product":"thinkstation_p720_firmware"},{"vendor":"lenovo","product":"thinkstation_p900_firmware"},{"vendor":"lenovo","product":"thinkstation_p910_firmware"},{"vendor":"lenovo","product":"thinkstation_p920_firmware"},{"vendor":"lenovo","product":"v130-14ast_firmware"},{"vendor":"lenovo","product":"v130-14igm_firmware"},{"vendor":"lenovo","product":"v130-14ikb_firmware"},{"vendor":"lenovo","product":"v130-15ast_firmware"},{"vendor":"lenovo","product":"v145-14ast_firmware"},{"vendor":"lenovo","product":"v145-15ast_firmware"},{"vendor":"lenovo","product":"v320-14ikb_firmware"},{"vendor":"lenovo","product":"v320-15ikb_firmware"},{"vendor":"lenovo","product":"v320-17ikbr_firmware"},{"vendor":"lenovo","product":"v330-14arr_firmware"},{"vendor":"lenovo","product":"v330-14ast_firmware"},{"vendor":"lenovo","product":"v330-14igm_firmware"},{"vendor":"lenovo","product":"v330-14isk_firmware"},{"vendor":"lenovo","product":"v330-15ast_firmware"},{"vendor":"lenovo","product":"wei5-14ikb_firmware"},{"vendor":"lenovo","product":"xiaoxin-13iml_firmware"},{"vendor":"lenovo","product":"xiaoxin-14_2019iwl_firmware"},{"vendor":"lenovo","product":"xiaoxin-14igm_qc_2019_firmware"},{"vendor":"lenovo","product":"xiaoxin-14iwl_qc_2019_firmware"},{"vendor":"lenovo","product":"xiaoxin-15_2019iwl_firmware"},{"vendor":"lenovo","product":"xiaoxin_air-14iwl_2019_firmware"},{"vendor":"lenovo","product":"xiaoxin_air-15iwl_2019_firmware"},{"vendor":"lenovo","product":"xiaoxin_air_13iwl_firmware"},{"vendor":"lenovo","product":"xiaoxin_air_14arr_firmware"},{"vendor":"lenovo","product":"xiaoxin_air_14ikbr_firmware"},{"vendor":"lenovo","product":"xiaoxin_air_14iwl_firmware"},{"vendor":"lenovo","product":"xiaoxin_air_15ikbr_firmware"},{"vendor":"lenovo","product":"xiaoxin_air_15iwl_firmware"},{"vendor":"lenovo","product":"xx-14kb_qc_2019_firmware"},{"vendor":"lenovo","product":"y7000_2019_1050_firmware"},{"vendor":"lenovo","product":"yoga_530-14arr_firmware"},{"vendor":"lenovo","product":"yoga_530-14ikb_firmware"},{"vendor":"lenovo","product":"yoga_720-12ikb_firmware"},{"vendor":"lenovo","product":"yoga_730-13ikb_firmware"},{"vendor":"lenovo","product":"yoga_730-13iwl_firmware"},{"vendor":"lenovo","product":"yoga_730-15ikb_firmware"},{"vendor":"lenovo","product":"yoga_730-15iwl_firmware"},{"vendor":"lenovo","product":"yoga_c740-14iml_firmware"},{"vendor":"lenovo","product":"yoga_c740-15iml_firmware"},{"vendor":"lenovo","product":"yoga_c930-13ikb_firmware"},{"vendor":"lenovo","product":"yoga_c930_glass_firmware"},{"vendor":"lenovo","product":"yoga_c940_firmware"},{"vendor":"lenovo","product":"yoga_s740-14iil_firmware"},{"vendor":"lenovo","product":"zhaoyang_k42-80_firmware"}],"references":[{"url":"https://support.lenovo.com/us/en/product_security/LEN-30042","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8321"},{"url":"https://github.com/advisories/GHSA-7939-9jcj-5hqr"}],"sources":{"cve":[{"id":"CVE-2020-8321","description":"A potential vulnerability in the SMI callback function used in the System Lock Preinstallation driver in some Lenovo Notebook and ThinkStation models may allow arbitrary code execution.","status":"published","published":"2020-06-09T19:50:35.401Z","modified":"2024-09-17T00:35:50.439Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:35:51.206854Z"}],"euvd":[{"id":"EUVD-2020-29188","description":"A potential vulnerability in the SMI callback function used in the System Lock Preinstallation driver in some Lenovo Notebook and ThinkStation models may allow arbitrary code execution.","status":"published","published":"2020-06-09T19:50:35Z","modified":"2024-09-17T00:35:50Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-03T00:28:57.917597Z"}],"ghsa":[{"id":"GHSA-7939-9jcj-5hqr","title":"A potential vulnerability in the SMI callback function used in the System Lock Preinstallation...","description":"A potential vulnerability in the SMI callback function used in the System Lock Preinstallation driver in some Lenovo Notebook and ThinkStation models may allow arbitrary code execution.","status":"published","published":"2022-05-24T17:20:01Z","modified":"2023-01-29T05:02:48Z","updated_at":"2026-11-02T14:45:10.478665Z"}],"nvd":[{"id":"CVE-2020-8321","description":"A potential vulnerability in the SMI callback function used in the System Lock Preinstallation driver in some Lenovo Notebook and ThinkStation models may allow arbitrary code execution.","status":"published","published":"2020-06-09T20:15:22.24Z","modified":"2026-06-17T03:26:15.8Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:L/AC:H/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"}],"updated_at":"2026-11-02T14:06:05.962132Z"}]}}
