CVE-2025-41236

VMXNET3 integer-overflow vulnerability

State: Published
Severity: 9.3 Critical
Published: Jul 15, 2025
Updated: Feb 26, 2026
Reserved: Apr 16, 2025

Description

VMware ESXi, Workstation, and Fusion contain an integer-overflow 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.

Scores

CVSS	Score	Vector	Source
3.1	9.3 Critical	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H	vmware

Weaknesses

CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
ESXiVMware	8.0 to before ESXi80U3f-24784735Affected 8.0 to before ESXi80U2e-24789317Affected 7.0 to before ESXi70U3w-24784741Affected
Cloud FoundationVMware	5.x, 4.5.xAffected
WorkstationVMware	17.x to before 17.6.4Affected
FusionVMware	13.x through 13.6.4Affected
Telco Cloud PlatformVMware	5.x, 4.x, 3.x, 2.xAffected
Telco Cloud InfrastructureVMware	3.x, 2.xAffected

References

https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/35877

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