CVE-2026-59347

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)

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.4 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

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

Configurations

No configuration.

History

07 Oct 2026, 06:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-07 06:16

Updated : 2026-10-07 15:58

NVD link : CVE-2026-59347

Mitre link : CVE-2026-59347

CVE.ORG link : CVE-2026-59347

JSON object : View

Products Affected

No product.

CWE

CWE-121

Stack-based Buffer Overflow

{"id": "CVE-2026-59347", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-59347", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-10-07T11:29:23.855420Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security@vmware.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 1.4}]}, "affected": [{"source": "security@vmware.com", "affectedData": [{"vendor": "VMware", "product": "VMware Workstation", "versions": [{"status": "affected", "version": "25H2", "versionType": "custom", "lessThanOrEqual": "26H1"}, {"status": "unaffected", "version": "26H1u1", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "VMware", "product": "VMware Fusion", "versions": [{"status": "affected", "version": "25H2", "versionType": "custom", "lessThanOrEqual": "26H1"}, {"status": "unaffected", "version": "26H1u1", "versionType": "custom"}], "platforms": ["macOS"], "defaultStatus": "unaffected"}]}], "published": "2026-10-07T06:16:35.700", "references": [{"url": "https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/security-advisories/0/38288", "source": "security@vmware.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "security@vmware.com", "description": [{"lang": "en", "value": "CWE-121"}]}], "descriptions": [{"lang": "en", "value": "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.\n\nAffected versions:\n- VMware Workstation: 25H2, 26H1 (fixed in 26H1u1)\n- VMware Fusion: 25H2, 26H1 (fixed in 26H1u1)"}], "lastModified": "2026-10-07T15:58:17.433", "sourceIdentifier": "security@vmware.com"}