{"cve_id":"CVE-2020-3992","published":"2020-10-20T17:15:12.810000+00:00","last_modified":"2026-08-12T05:17:31.310000+00:00","vuln_status":"Analyzed","description":"OpenSLP as used in VMware ESXi (7.0 before ESXi_7.0.1-0.0.16850804, 6.7 before ESXi670-202010401-SG, 6.5 before ESXi650-202010401-SG) has a use-after-free issue. A malicious actor residing in the management network who has access to port 427 on an ESXi machine may be able to trigger a use-after-free in the OpenSLP service resulting in remote code execution.","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-416"],"in_kev":true,"kev_date_added":"2021-11-03","kev_ransomware":true,"epss_score":0.83015,"epss_percentile":0.99674,"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":"2026-09-18T09:26:01.594530+00:00","first_seen":"2020-10-20T17:15:12.810000+00:00","kev_first_seen":"2021-11-03T00:00:00+00:00","novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["vmware"],"products":["cloud_foundation","esxi"],"affected":[{"vendor":"vmware","product":"cloud_foundation","ranges":["≥ 3.0 and < 3.10.1.2","≥ 4.0 and < 4.1.0.1"]},{"vendor":"vmware","product":"esxi","ranges":["6.5","6.7","7.0.0"]}]}