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Vulnerability record · CVE-2026-59346 · published 7 October 2026

CVE-2026-59346: Integer overflow vulnerability

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)

9.3 CVSS 3.1 Critical EPSS 0.26% · top 84.0% CWE-190 · Integer overflow Awaiting Analysis
9.3CVSS 3.1 base score
0.26%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
7 Oct 2026Last modified by NVD

Description

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)

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-59346), CISA KEV, FIRST EPSS (scores of 2026-10-07). This page is refreshed as NVD updates the record.