CVE-2020-3992

CriticalCVSS 9.8/10Known exploited (CISA KEV)Last modified Aug 12, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

No affected versions have been published.

Timeline

Published
Oct 20, 2020
Last modified
Aug 12, 2026
Added to CISA KEV
Nov 3, 2021
NVD status
Analyzed

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CVE-2020-3992: Critical severity, CVSS 9.8 | Vulnix