VMware ESX contains an out-of-bounds write vulnerability in the VMXNET3 virtual network adapter. 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. Non VMXNET3 virtual adapters are not affected by this issue.

Project Subscriptions

Vendors Products
Cloud Foundation Subscribe
Telco Cloud Platform Subscribe
Vsphere Foundation Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 30 Jul 2026 14:30:00 +0000

Type Values Removed Values Added
First Time appeared Vmware
Vmware cloud Foundation
Vmware esx
Vmware telco Cloud Platform
Vmware vsphere Foundation
Vendors & Products Vmware
Vmware cloud Foundation
Vmware esx
Vmware telco Cloud Platform
Vmware vsphere Foundation

Thu, 30 Jul 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Thu, 30 Jul 2026 12:45:00 +0000

Type Values Removed Values Added
Description VMware ESX contains an out-of-bounds write vulnerability in the VMXNET3 virtual network adapter. 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. Non VMXNET3 virtual adapters are not affected by this issue.
Title VMXNET3 out-of-bounds write vulnerability
Weaknesses CWE-787
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'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: vmware

Published:

Updated: 2026-07-30T13:02:29.161Z

Reserved: 2026-05-20T10:00:58.694Z

Link: CVE-2026-47876

cve-icon Vulnrichment

Updated: 2026-07-30T13:02:26.649Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-30T13:59:40Z

Weaknesses