CVE-2025-41236: VMware Cloud Foundation

Critical severity, CVSS 9.3. EPSS: 2.6% chance of exploitation in the next 30 days.

VMware ESXi, Workstation, and Fusion contain an integer-overflow vulnerability in the VMXNET3 virtual network adapter. A malicious actor with local administrative privileges on a virtual machine with VMXNET3 virtual network adapter may exploit this issue to execute code on the host. Non VMXNET3 virtual adapters are not affected by this issue.

Affected products

• VMware Cloud Foundation
• VMware ESXi
• VMware Fusion: from 13, up to and including 13.6.4
• VMware Telco Cloud Infrastructure
• VMware Telco Cloud Platform
• VMware Workstation: from 17, before 17.6.4 (fixed in 17.6.4)

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