{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-59346", "assignerOrgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "state": "PUBLISHED", "assignerShortName": "vmware", "dateReserved": "2026-07-04T18:14:34.673Z", "datePublished": "2026-10-07T05:40:03.571Z", "dateUpdated": "2026-10-07T11:29:55.791Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "shortName": "vmware", "dateUpdated": "2026-10-07T05:40:03.571Z" }, "title": "VMware Workstation and Fusion VMXNET3 integer-overflow vulnerability", "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-190", "description": "CWE-190 Integer Overflow or Wraparound", "type": "CWE" } ] } ], "impacts": [ { "descriptions": [ { "lang": "en", "value": "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": [ { "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" } ], "defaultStatus": "unaffected", "platforms": [ "macOS" ] } ], "descriptions": [ { "lang": "en", "value": "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.\n\nAffected versions:\n- VMware Workstation: 25H2, 26H1 (fixed in 26H1u1)\n- VMware Fusion: 25H2, 26H1 (fixed in 26H1u1)", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "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:
" } ] } ], "references": [ { "url": "https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/security-advisories/0/38288" } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "baseScore": 9.3, "baseSeverity": "CRITICAL", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH" } } ], "source": { "discovery": "UNKNOWN" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-10-07T11:29:45.838907Z", "id": "CVE-2026-59346", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-07T11:29:55.791Z" } } ] } }