What’s Vulnerable › Vulnerabilities

CVE-2020-3965

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-06-25 · updated 2026-06-17
• Weakness: CWE-125

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 XHCI USB controller. A malicious actor with local access to a virtual machine may be able to read privileged information contained in hypervisor memory from a virtual machine.

Affected products

• VMware Cloud Foundation: from 3.0 before 3.10; from 4.0.0 before 4.0.1 — fixed in 3.10, 4.0.1
• VMware ESXi: 6.5-650-201701001, 6.5-650-201703001, 6.5-650-201703002, 6.5-650-201704001, 6.5-650-201707101, 6.5-650-201707102 (+177); 6.5, 6.7, 7.0.0
• VMware Fusion: from 11.0.0 before 11.5.2 — fixed in 11.5.2
• VMware Workstation: from 15.0.0 before 15.5.2 — fixed in 15.5.2
• VMware ESXi: 7.0 before ESXi_7.0.0-1.20.16321839, 6.7 before ESXi670-202006401-SG, 6.5 before ESXi650-202005401-SG
• VMware Fusion: 11.x before 11.5.2
• VMware Workstation: 15.x before 15.5.2

How to fix

Upgrade to a fixed version: VMware Cloud Foundation 3.10, 4.0.1; VMware Fusion 11.5.2; VMware Workstation 15.5.2. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/158459/VMware-ESXi-Use-After-Free-Out-Of-Bounds-Access.html
• http://seclists.org/fulldisclosure/2020/Jul/22
• https://www.vmware.com/security/advisories/VMSA-2020-0015.html
• http://packetstormsecurity.com/files/158459/VMware-ESXi-Use-After-Free-Out-Of-Bounds-Access.html
• http://seclists.org/fulldisclosure/2020/Jul/22
• https://www.vmware.com/security/advisories/VMSA-2020-0015.html

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