Description
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)
Published: 2026-10-07
Score: 9.3 Critical
EPSS: < 1% Very Low
KEV: No
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Remediation

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History

Fri, 09 Oct 2026 09:15:00 +0000

Type Values Removed Values Added
First Time appeared Vmware
Vmware vmware Fusion
Vmware vmware Workstation
Vendors & Products Vmware
Vmware vmware Fusion
Vmware vmware Workstation

Wed, 07 Oct 2026 12:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 07 Oct 2026 06:00:00 +0000

Type Values Removed Values Added
Description 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)
Title VMware Workstation and Fusion VMXNET3 integer-overflow vulnerability
Weaknesses CWE-190
References
Metrics cvssV3_1

{'score': 9.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'}


Subscriptions

Vmware Vmware Fusion Vmware Workstation
cve-icon MITRE

Status: PUBLISHED

Assigner: vmware

Published:

Updated: 2026-10-07T11:29:55.791Z

Reserved: 2026-07-04T18:14:34.673Z

Link: CVE-2026-59346

cve-icon Vulnrichment

Updated: 2026-10-07T11:29:51.652Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-07T06:16:35.543

Modified: 2026-10-07T15:58:17.433

Link: CVE-2026-59346

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-09T08:30:31Z

Weaknesses