CVE-2020-3995: VMware Cloud Foundation

Medium severity, CVSS 5.3. EPSS: 1.1% chance of exploitation in the next 30 days.

In VMware ESXi (6.7 before ESXi670-201908101-SG, 6.5 before ESXi650-202007101-SG), Workstation (15.x before 15.1.0), Fusion (11.x before 11.1.0), the VMCI host drivers used by VMware hypervisors contain a memory leak vulnerability. A malicious actor with access to a virtual machine may be able to trigger a memory leak issue resulting in memory resource exhaustion on the hypervisor if the attack is sustained for extended periods of time.

Affected products

• VMware Cloud Foundation: from 3.0, before 3.9 (fixed in 3.9)
• VMware ESXi: version 6.7 only; version 6.5 only
• VMware Fusion: from 11.0.0, before 11.1.0 (fixed in 11.1.0)
• VMware Workstation: from 15.0.0, before 15.1.0 (fixed in 15.1.0)

Published 2020-10-20. Last modified 2026-06-17.