CVE-2020-3964

Name: CVE-2020-3964
Creator: NVD / NIST
Published: 2020-06-25T15:15:11.117+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.7/10EPSS 0.47%

Last modified Jun 17, 2026

CVE-2020-3964 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. VMware ESXi (7.0 before ESXi_7.0.0-1.20.16321839, 6.7 before ESXi670-202006401-SG and 6.5 before ESXi650-202005401-SG), Workstation (15.x before 15.5.2), and Fusion (11.x before 11.5.2) contain an information leak in the EHCI USB controller. A malicious actor with local access to a virtual machine may be able to read privileged information contained in the hypervisor's memory. EPSS estimates a 0.47% chance of exploitation in the next 30 days.

Description

VMware ESXi (7.0 before ESXi_7.0.0-1.20.16321839, 6.7 before ESXi670-202006401-SG and 6.5 before ESXi650-202005401-SG), Workstation (15.x before 15.5.2), and Fusion (11.x before 11.5.2) contain an information leak in the EHCI USB controller. A malicious actor with local access to a virtual machine may be able to read privileged information contained in the hypervisor's memory. Additional conditions beyond the attacker's control need to be present for exploitation to be possible.

Metrics

CVSS 3.1

4.7/10

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

EPSS Probability

0.47%

37.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-908

Affected Software

Vendor	Product	Versions
Vmware	Cloud Foundation	>= 3.0, < 3.10
Vmware	Cloud Foundation	>= 4.0.0, < 4.0.1
Vmware	Fusion	>= 11.0.0, < 11.5.2
Vmware	Workstation	>= 15.0.0, < 15.5.2
Vmware	Esxi	6.5
Vmware	Esxi	6.7
Vmware	Esxi	7.0.0

References

http://packetstormsecurity.com/files/158459/VMware-ESXi-Use-After-Free-Out-Of-Bounds-Access.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2020/Jul/22Mailing List, Third Party Advisory
https://www.vmware.com/security/advisories/VMSA-2020-0015.htmlVendor Advisory
http://packetstormsecurity.com/files/158459/VMware-ESXi-Use-After-Free-Out-Of-Bounds-Access.htmlExploit, Third Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2020/Jul/22Mailing List, Third Party Advisory
https://www.vmware.com/security/advisories/VMSA-2020-0015.htmlVendor Advisory

Timeline

Published: Jun 25, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-3964?

How severe is CVE-2020-3964?

CVE-2020-3964 has a CVSS score of 4.7/10 (MEDIUM severity). The EPSS model estimates a 0.47% probability of exploitation in the next 30 days.

How do I fix CVE-2020-3964?

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-2020-3964?

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

Scan your code now

Source: NVD / NIST