{"schemaVersion":3,"id":"CVE-2020-8333","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A potential vulnerability in the SMI callback function used in the EEPROM driver in some Lenovo Desktops and ThinkStation models may allow arbitrary code execution","dates":{"published":"2020-09-24T21:05:26.789Z","modified":"2024-09-16T17:38:49.850Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.8,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":6.4,"severity":"medium","vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.8,"severity":"high","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":7.2,"severity":"high","vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00334,"percentile":0.25449,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.00334},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00334,"percentile":0.25449}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00334,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00334,"percentile":0.25449}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"lenovo","product":"63_firmware","name":"63 firmware","label":"63_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fckt98a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fckt98a","eol":null,"hubHref":"/vendor/lenovo/63"},{"vendor":"lenovo","product":"bios","name":"bios","label":"bios","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"various","noFixRecorded":false,"fixedIn":null}],"versionsText":"various","eol":null,"hubHref":"/vendor/lenovo/bios"},{"vendor":"lenovo","product":"h50-30g_firmware","name":"h50-30g firmware","label":"h50-30g_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fckt98a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fckt98a","eol":null,"hubHref":"/vendor/lenovo/h50-30g"},{"vendor":"lenovo","product":"m4500_firmware","name":"m4500 firmware","label":"m4500_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fckt98a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fckt98a","eol":null,"hubHref":"/vendor/lenovo/m4500"},{"vendor":"lenovo","product":"m4550_firmware","name":"m4550 firmware","label":"m4550_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fckt98a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fckt98a","eol":null,"hubHref":"/vendor/lenovo/m4550"},{"vendor":"lenovo","product":"qitian_4500_firmware","name":"qitian 4500 firmware","label":"qitian_4500_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fckt98a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fckt98a","eol":null,"hubHref":"/vendor/lenovo/qitian_4500"},{"vendor":"lenovo","product":"qitian_b4550_firmware","name":"qitian b4550 firmware","label":"qitian_b4550_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fckt98a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fckt98a","eol":null,"hubHref":"/vendor/lenovo/qitian_b4550"},{"vendor":"lenovo","product":"qitian_m4550_firmware","name":"qitian m4550 firmware","label":"qitian_m4550_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fckt98a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fckt98a","eol":null,"hubHref":"/vendor/lenovo/qitian_m4550"},{"vendor":"lenovo","product":"thinkcentre_e73_firmware","name":"thinkcentre e73 firmware","label":"thinkcentre_e73_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fckt98a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fckt98a","eol":null,"hubHref":"/vendor/lenovo/thinkcentre_e73"},{"vendor":"lenovo","product":"thinkcentre_e73s_firmware","name":"thinkcentre e73s firmware","label":"thinkcentre_e73s_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fckt98a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fckt98a","eol":null,"hubHref":"/vendor/lenovo/thinkcentre_e73s"},{"vendor":"lenovo","product":"thinkcentre_e93_firmware","name":"thinkcentre e93 firmware","label":"thinkcentre_e93_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fbktdea","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fbktdea","eol":null,"hubHref":"/vendor/lenovo/thinkcentre_e93"},{"vendor":"lenovo","product":"thinkcentre_m4500k_firmware","name":"thinkcentre m4500k firmware","label":"thinkcentre_m4500k_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fckt98a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fckt98a","eol":null,"hubHref":"/vendor/lenovo/thinkcentre_m4500k"},{"vendor":"lenovo","product":"thinkcentre_m4500q_firmware","name":"thinkcentre m4500q firmware","label":"thinkcentre_m4500q_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fhkt85a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fhkt85a","eol":null,"hubHref":"/vendor/lenovo/thinkcentre_m4500q"},{"vendor":"lenovo","product":"thinkcentre_m4500s_firmware","name":"thinkcentre m4500s firmware","label":"thinkcentre_m4500s_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fckt98a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fckt98a","eol":null,"hubHref":"/vendor/lenovo/thinkcentre_m4500s"},{"vendor":"lenovo","product":"thinkcentre_m4500t_firmware","name":"thinkcentre m4500t firmware","label":"thinkcentre_m4500t_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fckt98a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fckt98a","eol":null,"hubHref":"/vendor/lenovo/thinkcentre_m4500t"},{"vendor":"lenovo","product":"thinkcentre_m9350z_firmware","name":"thinkcentre m9350z firmware","label":"thinkcentre_m9350z_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fekta2a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fekta2a","eol":null,"hubHref":"/vendor/lenovo/thinkcentre_m9350z"},{"vendor":"lenovo","product":"thinkcentre_m93z_firmware","name":"thinkcentre m93z firmware","label":"thinkcentre_m93z_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fekta2a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fekta2a","eol":null,"hubHref":"/vendor/lenovo/thinkcentre_m93z"},{"vendor":"lenovo","product":"thinkstation_c30_firmware","name":"thinkstation c30 firmware","label":"thinkstation_c30_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< a3kt70a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< a3kt70a","eol":null,"hubHref":"/vendor/lenovo/thinkstation_c30"},{"vendor":"lenovo","product":"thinkstation_d30_firmware","name":"thinkstation d30 firmware","label":"thinkstation_d30_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< a3kt70a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< a3kt70a","eol":null,"hubHref":"/vendor/lenovo/thinkstation_d30"},{"vendor":"lenovo","product":"thinkstation_e32_firmware","name":"thinkstation e32 firmware","label":"thinkstation_e32_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fbktdea","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fbktdea","eol":null,"hubHref":"/vendor/lenovo/thinkstation_e32"},{"vendor":"lenovo","product":"thinkstation_p300_firmware","name":"thinkstation p300 firmware","label":"thinkstation_p300_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< a2kt70a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< a2kt70a","eol":null,"hubHref":"/vendor/lenovo/thinkstation_p300"},{"vendor":"lenovo","product":"thinkstation_s30_firmware","name":"thinkstation s30 firmware","label":"thinkstation_s30_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< a2kt70a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< a2kt70a","eol":null,"hubHref":"/vendor/lenovo/thinkstation_s30"},{"vendor":"lenovo","product":"yangtian_afh81_firmware","name":"yangtian afh81 firmware","label":"yangtian_afh81_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fckt98a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fckt98a","eol":null,"hubHref":"/vendor/lenovo/yangtian_afh81"},{"vendor":"lenovo","product":"yangtian_mc_h81_firmware","name":"yangtian mc h81 firmware","label":"yangtian_mc_h81_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fckt98a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fckt98a","eol":null,"hubHref":"/vendor/lenovo/yangtian_mc_h81"},{"vendor":"lenovo","product":"yangtian_mf_h81_pci_firmware","name":"yangtian mf h81 pci firmware","label":"yangtian_mf_h81_pci_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fckt98a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fckt98a","eol":null,"hubHref":"/vendor/lenovo/yangtian_mf_h81_pci"},{"vendor":"lenovo","product":"yangtian_tc_h81_pci_firmware","name":"yangtian tc h81 pci firmware","label":"yangtian_tc_h81_pci_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fckt98a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fckt98a","eol":null,"hubHref":"/vendor/lenovo/yangtian_tc_h81_pci"},{"vendor":"lenovo","product":"yangtian_wcc_h81_pci_firmware","name":"yangtian wcc h81 pci firmware","label":"yangtian_wcc_h81_pci_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fckt98a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fckt98a","eol":null,"hubHref":"/vendor/lenovo/yangtian_wcc_h81_pci"},{"vendor":"lenovo","product":"yangtian_wf_h81_pci_firmware","name":"yangtian wf h81 pci firmware","label":"yangtian_wf_h81_pci_firmware","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"< fckt98a","noFixRecorded":false,"fixedIn":null}],"versionsText":"< fckt98a","eol":null,"hubHref":"/vendor/lenovo/yangtian_wf_h81_pci"}],"affectedCount":28,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://support.lenovo.com/us/en/product_security/LEN-30042","label":"support.lenovo.com/us/en/product_security/LEN-30042","hostname":"support.lenovo.com","tags":["X Refsource MISC","Patch","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2020-09-24T21:05:26.789Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-09-16T17:38:49.850Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":31,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T18:47:46.533Z","stale":false,"partial":false}}