9.3 Critical

CVE-2025-41237 VMCI integer-underflow vulnerability

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.

CVSS 3.1 detail

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Exploitable with local access to the machine, without an account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.

Attack vector: Local
Attack complexity: Low
Privileges required: None
Interaction: None
Scope: Changed
Confidentiality: High
Integrity: High
Availability: High

Affected products and versions

Product	Affected versions	Fixed in
Cloud Foundation	Versions not published
vSphere Foundation	9.0.0.0	No fix stated
ESXi 8.0	8.0 → latest	No fix stated
ESXi 7.0	7.0 → latest	No fix stated
Workstation 17	17.x → < 17.6.4	17.6.4
Fusion 13	13.x → < 13.6.4	13.6.4
Telco Cloud Platform	Versions not published
Telco Cloud Infrastructure	Versions not published

References

support.broadcom.com support.broadcom.com

Timeline

Published July 15, 2025
Last modified November 3, 2026

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