{"cve":{"cve_id":"CVE-2020-2040","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":0.03937,"epss_percentile":0.89032,"epss_as_of":"2026-06-23","description":"A buffer overflow vulnerability in PAN-OS allows an unauthenticated attacker to disrupt system processes and potentially execute arbitrary code with root privileges by sending a malicious request to the Captive Portal or Multi-Factor Authentication interface. This issue impacts: All versions of PAN-OS 8.0; PAN-OS 8.1 versions earlier than PAN-OS 8.1.15; PAN-OS 9.0 versions earlier than PAN-OS 9.0.9; PAN-OS 9.1 versions earlier than PAN-OS 9.1.3.","published_at":"2020-09-09T16:45:27.805000Z","last_modified_at":null,"cvss_v3_score":9.8,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_v3_severity":"CRITICAL","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-120"],"nvd_references":["https://security.paloaltonetworks.com/CVE-2020-2040"],"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":"2026-06-28T23:13:45.421190Z"},"effective_severity":"CRITICAL","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"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":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"palo-alto-networks","vendor_name":"Palo Alto Networks","product_slug":"pan-os","product_name":"pan-os","version_start":"8.0.*","version_start_inclusive":true,"version_end":"8.0.*","version_end_inclusive":true,"cpe23_uri":"cve5:palo-alto-networks:pan-os:8.0.*:8.0.*"},{"vendor_slug":"palo-alto-networks","vendor_name":"Palo Alto Networks","product_slug":"pan-os","product_name":"pan-os","version_start":"9.0","version_start_inclusive":true,"version_end":"9.0.9","version_end_inclusive":false,"cpe23_uri":"cve5:palo-alto-networks:pan-os:9.0:9.0.9"},{"vendor_slug":"palo-alto-networks","vendor_name":"Palo Alto Networks","product_slug":"pan-os","product_name":"pan-os","version_start":"9.1","version_start_inclusive":true,"version_end":"9.1.3","version_end_inclusive":false,"cpe23_uri":"cve5:palo-alto-networks:pan-os:9.1:9.1.3"},{"vendor_slug":"palo-alto-networks","vendor_name":"Palo Alto Networks","product_slug":"pan-os","product_name":"pan-os","version_start":"8.1","version_start_inclusive":true,"version_end":"8.1.15","version_end_inclusive":false,"cpe23_uri":"cve5:palo-alto-networks:pan-os:8.1:8.1.15"},{"vendor_slug":"palo-alto-networks","vendor_name":"Palo Alto Networks","product_slug":"pan-os","product_name":"pan-os","version_start":"10.0.0","version_start_inclusive":true,"version_end":"10.0*","version_end_inclusive":false,"cpe23_uri":"cve5:palo-alto-networks:pan-os:10.0.0:10.0*"}],"exploit_refs":[],"news":[],"references":[{"url":"https://security.paloaltonetworks.com/CVE-2020-2040","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2020-09-09T16:45:27.805000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:03:33.997885Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:03:33.997885Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:03:33.997885Z","label":"CVSS score revised","source":"cvelistv5"}]}