{"cve":{"cve_id":"CVE-2021-3519","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.00231,"epss_percentile":0.13636,"epss_as_of":"2026-06-23","description":"A vulnerability was reported in some Lenovo Desktop models that could allow unauthorized access to the boot menu, when the \"BIOS Password At Boot Device List\" BIOS setting is Yes.","published_at":"2021-11-12T22:05:29Z","last_modified_at":null,"cvss_v3_score":6.4,"cvss_v3_vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H","cvss_v3_severity":"MEDIUM","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-287"],"nvd_references":["https://support.lenovo.com/us/en/product_security/LEN-67440"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:15:49.644234Z"},"effective_severity":"MEDIUM","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"P","value_label":"Physical"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"L","value_label":"Low"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"lenovo","vendor_name":"Lenovo","product_slug":"desktop-bios","product_name":"Desktop BIOS","version_start":"various","version_start_inclusive":true,"version_end":"various","version_end_inclusive":true,"cpe23_uri":"cve5:lenovo:desktop-bios:various:various"}],"exploit_refs":[],"news":[],"references":[{"url":"https://support.lenovo.com/us/en/product_security/LEN-67440","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2021-11-12T22:05:29Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:19:21.235572Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:19:21.235572Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:19:21.235572Z","label":"CVSS score revised","source":"cvelistv5"}]}