CVE-2026-59346

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)

Score

CVSS 3.1 9.3 Critical

Status

Awaiting Analysis - security@vmware.com

Published

2026-10-07

Last modified

2026-10-07

Weaknesses

CWE-190

Affected products

• Vmware Fusion (Vmware)
• Vmware Workstation (Vmware)

References

• https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/security-advisories/0/38288