| CVE-2020-3966 | Date: (C)2020-06-26 (M)2023-12-22 |
VMware ESXi (7.0 before ESXi_7.0.0-1.20.16321839, 6.7 before ESXi670-202004101-SG and 6.5 before ESXi650-202005401-SG), Workstation (15.x before 15.5.2), and Fusion (11.x before 11.5.2) contain a heap-overflow due to a race condition issue in the USB 2.0 controller (EHCI). A malicious actor with local access to a virtual machine may be able to exploit this vulnerability to execute code on the hypervisor from a virtual machine. Additional conditions beyond the attacker's control must be present for exploitation to be possible.
CVSS Score and Metrics +CVSS Score and Metrics -| CVSS V3 Severity: | CVSS V2 Severity: |
| CVSS Score : 7.5 | CVSS Score : 3.7 |
| Exploit Score: 0.8 | Exploit Score: 1.9 |
| Impact Score: 6.0 | Impact Score: 6.4 |
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| CVSS V3 Metrics: | CVSS V2 Metrics: |
| Attack Vector: LOCAL | Access Vector: LOCAL |
| Attack Complexity: HIGH | Access Complexity: HIGH |
| Privileges Required: HIGH | Authentication: NONE |
| User Interaction: NONE | Confidentiality: PARTIAL |
| Scope: CHANGED | Integrity: PARTIAL |
| Confidentiality: HIGH | Availability: PARTIAL |
| Integrity: HIGH | |
| Availability: HIGH | |
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