CVE-2020-3968
mediumpriority · track · 33EPSS 0.006 · 48 %ileEURUUSEPSS · scored 2026-10-27
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 15.5.5), and Fusion (11.x before 11.5.5) contain an out-of-bounds write vulnerability in the USB 3.0 controller (xHCI). A malicious actor with local administrative privileges on a virtual machine may be able to exploit this issue to crash the virtual machine's vmx process leading to a denial of service condition or 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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.6–8.2
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (19)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- https://nvd.nist.gov/vuln/detail/CVE-2020-3968cnnvd
- https://vigilance.fr/vulnerability/VMware-ESXi-Workstation-multiple-vulnerabilities-32615cnnvd
- https://www.auscert.org.au/bulletins/ESB-2020.2190/cnnvd
- https://www.vmware.com/security/advisories/VMSA-2020-0015.htmlcnnvd
- https://www.zerodayinitiative.com/advisories/ZDI-20-781/cnnvd
- https://www.vmware.com/security/advisories/VMSA-2020-0015.htmlenisa_euvd
- https://www.zerodayinitiative.com/advisories/ZDI-20-781/enisa_euvd
- https://www.vmware.com/security/advisories/VMSA-2020-0015.htmlVendor Advisorynvd
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