CVE Watch12 ago 2026

CVE-2020-3992

VMware ESXi OpenSLP Use-After-Free Vulnerability

CVSS

9.8

Crítico

EPSS

83.0%

p100

KEV

SÍ

3 nov 2021

Exploit Today

0-100

Publicado: 20 oct 2020 · Última mod.: 12 ago 2026 · CWE-416

EPSS · 30d

83.0%EPSS · 30 días83.0%

2026-08-022026-08-31

Ficha del catálogo KEV

Producto

VMware / ESXi

Vulnerabilidad

VMware ESXi OpenSLP Use-After-Free Vulnerability

Añadido a KEV

3 nov 2021

Remediar antes de

3 may 2022

Uso conocido en ransomware

Sí

Descripción resumida

VMware ESXi OpenSLP contains a use-after-free vulnerability that allows an attacker residing in the management network with access to port 427 to perform remote code execution.

Acción requerida

Apply updates per vendor instructions.

Notas

https://nvd.nist.gov/vuln/detail/CVE-2020-3992

Descripción técnica

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.

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