CVE-2020-4004

Name: CVE-2020-4004
Creator: NVD / NIST
Published: 2020-11-20T20:15:13.147+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.2/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2020-4004 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. VMware ESXi (7.0 before ESXi70U1b-17168206, 6.7 before ESXi670-202011101-SG, 6.5 before ESXi650-202011301-SG), Workstation (15.x before 15.5.7), Fusion (11.x before 11.5.7) contain a use-after-free vulnerability in the XHCI USB controller. A malicious actor with local administrative privileges on a virtual machine may exploit this issue to execute code as the virtual machine's VMX process running on the host.. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

VMware ESXi (7.0 before ESXi70U1b-17168206, 6.7 before ESXi670-202011101-SG, 6.5 before ESXi650-202011301-SG), Workstation (15.x before 15.5.7), Fusion (11.x before 11.5.7) contain a use-after-free vulnerability in the XHCI USB controller. A malicious actor with local administrative privileges on a virtual machine may exploit this issue to execute code as the virtual machine's VMX process running on the host.

Metrics

CVSS 3.1

8.2/10

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

EPSS Probability

0.39%

31.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-416

Affected Software

Vendor	Product	Versions
Vmware	Fusion	>= 11.0, < 11.5.7
Vmware	Cloud Foundation	>= 3.0, < 3.10.1.2
Vmware	Cloud Foundation	>= 4.0, < 4.1.0.1
Vmware	Workstation	>= 15.0.0, < 15.5.7
Vmware	Esxi	6.5
Vmware	Esxi	6.7
Vmware	Esxi	7.0

References

https://www.vmware.com/security/advisories/VMSA-2020-0026.htmlPatch, Vendor Advisory
https://www.vmware.com/security/advisories/VMSA-2020-0026.htmlPatch, Vendor Advisory

Timeline

Published: Nov 20, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-4004?

How severe is CVE-2020-4004?

CVE-2020-4004 has a CVSS score of 8.2/10 (HIGH severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2020-4004?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-4004?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST