UnratedVMware (Broadcom) Exploited CISA KEV

Unknown [CVE-2020-3992] 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

This security VMware (Broadcom) advisory covers CVE-2020-3992 affecting VMware ESXi.

CVE-2020-3992 Published Oct 20, 2020Updated by vendor Aug 12, 2026

CVE-2020-3992

Affected products & platforms

VMware (Broadcom)ESXi

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Summary

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.

CISA Known Exploited Vulnerability

Listed:: Nov 3, 2021 · federal remediation due May 3, 2022
Required action:: Apply updates per vendor instructions.
Ransomware use:: Known

KEV is a prioritization signal from CISA — remediation detail still comes from the vendor advisory.

Affected versions

VMware ESXi VMware ESXi (7.0 before ESXi_7.0.1-0.0.16850804, 6.7 before ESXi670-202010401-SG, 6.5 before ESXi650-202010401-SG)

Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source

Fixed versions

No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.

Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source

Mitigation

The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.

Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
VMware (Broadcom)
CVE.org CNA recordCVE.org
Independent CNA record used for near-real-time discovery and missed-CVE reconciliation. Discovered from the machine-readable feed https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/delta.json; this link opens the CVE.org record for CVE-2020-3992 instead of the raw feed document.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2020-3992NVD CVE.org MITRE

Official resources

Broadcom support downloads (ESXi / vCenter patches)
Official documentation
Official upgrade documentation for vSphere (ESXi / vCenter).
VMware product lifecycle (EOL / support dates)
Release notes
Confirm your release train is still supported before planning the upgrade path.
Broadcom / VMware Security Advisories (VMSA)
Official documentation
Canonical VMSA portal — full advisory text, response matrix and fixed-version tables.
VMware docs on Broadcom TechDocs
Official documentation
Official VMware product documentation, including upgrade and patching guides.

Discussion(0)

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