CVE-2026-59346CWE-190

CVE-2026-59346

Critical · published October 7, 2026

CVSS v3.1
9.3
EPSS
0%
Percentile
16.5
In the wild
Unconfirmed
What it is

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)

The record
Technical detail
CVSS v3.1
9.3 · CRITICAL
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00258 · 16.5th percentile
Weakness
CWE-190 · Integer Overflow or Wraparound
Published
2026-10-07T10:16Z
References (1)
https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/security-advisories/0/38288 · [email protected]
EPSS history
Timeline
  • 08 OCT 03:31Z
    EPSS moved — → 0%
    epss
  • 07 OCT 05:40Z
    VMware Workstation and Fusion VMXNET3 integer-overflow vulnerability
    cvelistv5