CVE-2026-59347

VMware Workstation and Fusion HGFS stack-based buffer-overflow vulnerability

HIGH
8.1
CVSS Score
Published: October 7, 2026 at 05:40 AM UTC
Updated: October 7, 2026 at 03:58 PM UTC
2 products affected across 1 vendorWorkstationFusion

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Severity
HIGH8.1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

VMware Workstation and Fusion contain a stack-based buffer-overflow vulnerability in HGFS. A malicious actor with local administrative privileges on a virtual machine may exploit this issue to execute code as the virtual machine's VMX process running on the host. Affected versions: - VMware Workstation: 25H2, 26H1 (fixed in 26H1u1) - VMware Fusion: 25H2, 26H1 (fixed in 26H1u1)

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

25H2 ≤ v ≤ 26H125H2
25H2 ≤ v ≤ 26H125H2

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.1HIGHvmware
Attack Vector
LOCAL
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-121

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