This report was translated by AI; nobody has reviewed the translation yet. Original language: Czech.

[TLP:CLEAR] VMware Workstation & Fusion fix 2 vulnerabilities

Broadcom fixes 2 vulnerabilities in VMware Workstation and VMware Fusion with version 26H1u1, one of them critical [1].

VMware Workstation & Fusion - RCE (CVE-2026-59346)
CVSS 9.3 (Critical)

A local attacker with administrative privileges on a virtual machine with a configured VMXNET3 network adapter can execute code on the host system due to an integer overflow in this component [1].

The vulnerability is present in products:

  • VMware Workstation; >=25H2, <26H1u1; >=26H1, <26H1u1
  • VMware Fusion; >=25H2, <26H1u1; >=26H1, <26H1u1

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

More information:

The vulnerability was publicly disclosed 3. 9. 2026.

VMware Workstation & Fusion - RCE (CVE-2026-59347)
CVSS 8.1 (High)

A local attacker with administrative privileges on a virtual machine can execute code in the context of the VMX process on the host system due to a stack overflow in the HGFS component [1].

The vulnerability is present in products:

  • VMware Workstation; >=25H2, <26H1u1; >=26H1, <26H1u1
  • VMware Fusion; >=25H2, <26H1u1; >=26H1, <26H1u1

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

More information:

The vulnerability was publicly disclosed 3. 9. 2026.


By CESNET, z.s.p.o. Michaela Jarošová on 7. 9. 2026.

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