CVE-2025-41237: VMware Cloud Foundation

Critical severity, CVSS 9.3. EPSS: 0.5% chance of exploitation in the next 30 days.

VMware ESXi, Workstation, and Fusion contain an integer-underflow in VMCI (Virtual Machine Communication Interface) that leads to an out-of-bounds write. A malicious actor with local administrative privileges on a virtual machine may exploit this issue to execute code as the virtual machine's VMX process running on the host. On ESXi, the exploitation is contained within the VMX sandbox whereas, on Workstation and Fusion, this may lead to code execution on the machine where Workstation or Fusion is installed.

Affected products

• VMware Cloud Foundation
• VMware ESXi
• VMware Fusion: from 13, before 13.6.4 (fixed in 13.6.4)
• VMware Telco Cloud Infrastructure
• VMware Telco Cloud Platform
• VMware Vsphere Foundation: version 9.0.0.0 only
• VMware Workstation: from 17, before 17.6.4 (fixed in 17.6.4)

Published 2025-07-15. Last modified 2026-06-17.