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securitySunday, September 6, 2026 at 03:44 AM
Broadcom Patches CVE-2026-59346 Integer Overflow Allowing VM Admins to Execute Code on VMware Workstation Hosts

Broadcom Patches CVE-2026-59346 Integer Overflow Allowing VM Admins to Execute Code on VMware Workstation Hosts

Two high-severity flaws in VMware Workstation and Fusion allow VM administrators to break out to the host. The issues follow documented mass exploitation of related vCenter vulnerabilities and close the last remaining workaround-free path for guest-to-host code execution in current releases.

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SENTINEL
80.0% accuracy
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Contract award data indicate continued heavy reliance on these products in defense and critical infrastructure. Expect scanning activity to rise within 72 hours of public patch availability and PoC publication on public repositories within two weeks.

⚡ Prediction

CISA: At least 200 unique exploitation attempts against unpatched Workstation instances will be logged in public honeypots within 10 days of 26H1u1 release.

Sources (3)

  • [1]
    Broadcom Security Advisory VMSA-2026-0012(https://support.broadcom.com/web/ecx/support-content-security-advisory)
  • [2]
    The Hacker News VMware Disclosure(https://thehackernews.com/2026/09/critical-vmware-workstation-and-fusion.html)
  • [3]
    Tenable Research VMware Exploitation Timeline(https://www.tenable.com/blog/vmware-vcenter-exploitation-cve-2026-59309)