CVE-2025-41237: vmware cloud_foundation Out-of-bounds Write

Vulnerability summary

CVE-2025-41237 is a critical (CVSS 9.3) Out-of-bounds Write vulnerability in vmware cloud_foundation. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 38.5% of scored vulnerabilities.

Timeline

1. 15-07-2025
   PublishedVulnerability first disclosed.
2. 26-02-2026
   Last modifiedVulnerability information updated.

Description

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.

• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.