{"cve_id":"CVE-2020-0646","published":"2020-01-14T23:15:33.143000+00:00","last_modified":"2026-06-17T02:46:15.230000+00:00","vuln_status":"Analyzed","description":"A remote code execution vulnerability exists when the Microsoft .NET Framework fails to validate input properly, aka '.NET Framework Remote Code Execution Injection Vulnerability'.","cvss_version":"3.1","cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","base_score":9.8,"base_severity":"CRITICAL","attack_vector":"NETWORK","privileges_req":"NONE","user_interaction":"NONE","scope":"UNCHANGED","impact_c":"HIGH","impact_i":"HIGH","impact_a":"HIGH","cwe_ids":["CWE-91"],"in_kev":true,"kev_date_added":"2021-11-03","kev_ransomware":false,"epss_score":0.99222,"epss_percentile":0.99935,"cap_rule_version":"0.1.1","stage":"INITIAL_ACCESS","req_access":"NONE","req_vector":"NETWORK","req_user_interaction":false,"grant_access":"USER","caps":["CODE_EXEC"],"terminal":false,"cap_confidence":"high","ingested_at":"2026-09-18T09:10:50.215844+00:00","first_seen":"2020-01-14T23:15:33.143000+00:00","kev_first_seen":"2021-11-03T00:00:00+00:00","novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["microsoft"],"products":[".net_framework","windows_10_1507","windows_10_1607","windows_10_1709","windows_10_1803","windows_10_1809","windows_10_1903","windows_10_1909","windows_7","windows_8.1","windows_rt_8.1","windows_server_2008","windows_server_2012","windows_server_2016","windows_server_2019"],"affected":[{"vendor":"microsoft","product":".net_framework","ranges":["3.0","3.5","4.6.2","4.7","4.7.1","4.7.2","4.8","3.5.1","4.5.2","4.6","4.6.1"]}]}