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Vulnerability · Published Jul 15, 2025 · Assigned by vmware

CVE-2025-41237VMCI integer-underflow vulnerability

Critical 9.3

In plain English

A critical-severity out-of-bounds write in Cloud Foundation from VMware. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).

Severity (CVSS 3.1)9.3Critical
Exploit odds (30 days)0.5%top 59.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
VMware Cloud Foundation 9.0.0.0, 5.x, 4.5.x
VMware vSphere Foundation 9.0.0.0
VMware ESXi 8.0 – before ESXi80U3f-247847358.0 – before ESXi80U2e-247893177.0 – before ESXi70U3w-24784741
VMware Workstation 17.x – before 17.6.4
VMware Fusion 13.x – before 13.6.4
VMware Telco Cloud Platform 5.x, 4.x, 3.x, 2.x
VMware Telco Cloud Infrastructure 3.x, 2.x

Weakness: CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References