Skip to content
CVSS 9.3 · CRITICAL

CVE-2026-47876Guest-to-Host VM Escape (RCE) in VMware ESXi

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.

View on NVD

Analysis

Vulnerabilidad de escape de maquina virtual en VMware ESXi que permite a un atacante con privilegios de administrador en una VM ejecutar codigo en el host fisico. Afecta al adaptador de red VMXNET3 y compromete la integridad de todo el hipervisor.

Severity

Score: 9.3(CRITICAL)
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
AV: LOCAL
AC: LOW
PR: NONE
UI: NONE
S: CHANGED
C: HIGH
I: HIGH
A: HIGH
Weakness (CWE): CWE-787

EPSS

No EPSS score yet (CVE may be too fresh).

Technical 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.

Published: 7/30/2026, 1:16:51 PM
Last modified: 7/30/2026, 2:16:58 PM

References

HomeEventsBlogResourcesCoursesTeam