---
id: CVE-2026-59346
title: VMware Workstation and Fusion contain an integer-overflow vulnerability
summary: >-
  VMware Workstation and Fusion contain an integer-overflow vulnerability. 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.…
severity: critical
cvss: 9.3
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-190
vendor: VMware
product: VMware Workstation
affected:
  - workstation >= 25H2 <= 26H1
  - fusion >= 25H2 <= 26H1
published: '2026-10-07'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T06:16:35.543'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-59346'
references:
  - url: >-
      https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/security-advisories/0/38288
    label: security@vmware.com
tags:
  - nvd
  - cve.org
  - exploit-available
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/0xCyberstan/CVE-2026-59346-POC'
  checkedAt: '2026-10-07T08:20:38.257Z'
exploitAvailable: true
ingestedAt: '2026-10-07T08:20:03.936Z'
---

## Overview

VMware Workstation and Fusion contain an integer-overflow vulnerability. 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.

Affected versions:
- VMware Workstation: 25H2, 26H1 (fixed in 26H1u1)
- VMware Fusion: 25H2, 26H1 (fixed in 26H1u1)

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.