{"cve":"CVE-2020-3992","nvd":{"published":"2020-10-20T17:15:12.810","modified":"2026-08-12T05:17:31.310","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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-416"],"references":["https://www.vmware.com/security/advisories/VMSA-2020-0023.html","https://www.zerodayinitiative.com/advisories/ZDI-20-1377/","https://www.zerodayinitiative.com/advisories/ZDI-20-1385/","https://www.vmware.com/security/advisories/VMSA-2020-0023.html","https://www.zerodayinitiative.com/advisories/ZDI-20-1377/"],"products":["vmware:cloud_foundation","vmware:esxi"],"source":"nvd","synced_at":"2026-10-19T21:09:53.489947993+00:00"},"epss":{"cve":"CVE-2020-3992","score":0.83015,"percentile":0.99674,"date":"2026-11-01"},"kev":{"cve":"CVE-2020-3992","date_added":"2021-11-03","due_date":"2022-05-03","vendor":"VMware","product":"ESXi","known_ransomware":true},"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}