---
cve: "CVE-2020-3992"
severity: "CRITICAL"
cvss: 9.8
epss: "83%"
vendor: "n/a"
kev: true
exploited: true
published: "2020-10-20 17:15:12"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-10T09:20:27+02:00"
---

# CVE-2020-3992

> 9.8 CRITICAL · ⚠️ CISA KEV (1772 Tage) · 🔓 Exploited

## Beschreibung

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-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Referenzen

- <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.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3992>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2020-3992) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_