CVE-2020-3992

CRITICALImmediate

Published:Oct 20, 2020(5 years ago)

Modified:Oct 30, 2025

Remote ExploitNo Auth RequiredNo InteractionLow Complexity

Vulnerability 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.

Attack Characteristics

Network AccessLow ComplexityNo Auth NeededNo User Interaction

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AI analysis not yet available

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No Fix Known

No patch has been released yet. Apply workarounds or mitigations where available.

Affected Software

224

Vendor	Product	Versions	Fixed In
vmware	cloud_foundation	3.0 - 3.10.1.2	-
vmware	cloud_foundation	4.0 - 4.1.0.1	-
vmware	esxi	-

Timeline

Published
CVE disclosed publicly
Oct 20, 20205 years ago
Last Modified
Most recent update
Oct 30, 20256 months ago
Indexed to CVEInsight
Added to this platform
Mar 29, 20261 month ago

References

https://www.vmware.com/security/advisories/VMSA-2020-0023.htmlPatch
https://www.zerodayinitiative.com/advisories/ZDI-20-1377/Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-1385/Third Party Advisory

CVSS Score

v3.1

9.8/ 10.0

CRITICAL

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

At a Glance

224

Affected Products

References

vmware / cloud_foundation

CVE-2020-3992

Vulnerability Description

Attack Characteristics

Affected Software

Timeline

References

CVSS Score

At a Glance

Official Sources

CVSS v3 Vector

Impact Analysis

CVE-2020-3992

✦ Vulnerability Description

Attack Characteristics

Affected Software

Timeline

References

CVSS Score

At a Glance

Official Sources

CVSS v3 Vector

Impact Analysis

Vulnerability Description