{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-47876", "assignerOrgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "state": "PUBLISHED", "assignerShortName": "vmware", "dateReserved": "2026-05-20T10:00:58.694Z", "datePublished": "2026-07-30T12:31:52.158Z", "dateUpdated": "2026-07-30T13:02:29.161Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "shortName": "vmware", "dateUpdated": "2026-07-30T12:31:52.158Z"}, "title": "VMXNET3 out-of-bounds write vulnerability", "datePublic": "2026-07-29T04:30:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-787", "description": "CWE-787 Out-of-bounds write", "type": "CWE"}]}], "affected": [{"vendor": "VMware", "product": "Cloud Foundation", "versions": [{"status": "affected", "version": "9.1.x.x"}, {"status": "affected", "version": "9.0.x.x"}, {"status": "affected", "version": "5.x"}], "defaultStatus": "unaffected"}, {"vendor": "VMware", "product": "vSphere Foundation", "versions": [{"status": "affected", "version": "9.1.x.x"}, {"status": "affected", "version": "9.0.x.x"}], "defaultStatus": "unaffected"}, {"vendor": "VMware", "product": "ESX", "versions": [{"status": "affected", "version": "9.1.x.x", "lessThan": "ESXi-9.1.0.0200-25557999", "versionType": "custom"}, {"status": "affected", "version": "9.0.x.x", "lessThan": "ESXi-9.0.2.0100-25595025", "versionType": "custom"}, {"status": "affected", "version": "8.0", "lessThan": "ESXi80U3k-25595708", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "VMware", "product": "Telco Cloud Platform", "versions": [{"status": "affected", "version": "5.1.x"}, {"status": "affected", "version": "5.0.x"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "VMware ESX contains an out-of-bounds write vulnerability in the VMXNET3 virtual network adapter.\u00a0A 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. Non VMXNET3 virtual adapters are not affected by this issue.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "VMware ESX contains an out-of-bounds write vulnerability in the VMXNET3 virtual network adapter.&nbsp;<span>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. Non VMXNET3 virtual adapters are not affected by this issue.</span><br><br>"}]}], "references": [{"url": "https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/38017"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "CRITICAL", "baseScore": 9.3, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.4"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-30T13:02:22.733448Z", "id": "CVE-2026-47876", "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": "2026-07-30T13:02:29.161Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-47876", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-07-30T13:02:22.733448Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-30T13:02:26.649Z"}}], "cna": {"title": "VMXNET3 out-of-bounds write vulnerability", "source": {"discovery": "UNKNOWN"}, "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.3, "attackVector": "LOCAL", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "VMware", "product": "Cloud Foundation", "versions": [{"status": "affected", "version": "9.1.x.x"}, {"status": "affected", "version": "9.0.x.x"}, {"status": "affected", "version": "5.x"}], "defaultStatus": "unaffected"}, {"vendor": "VMware", "product": "vSphere Foundation", "versions": [{"status": "affected", "version": "9.1.x.x"}, {"status": "affected", "version": "9.0.x.x"}], "defaultStatus": "unaffected"}, {"vendor": "VMware", "product": "ESX", "versions": [{"status": "affected", "version": "9.1.x.x", "lessThan": "ESXi-9.1.0.0200-25557999", "versionType": "custom"}, {"status": "affected", "version": "9.0.x.x", "lessThan": "ESXi-9.0.2.0100-25595025", "versionType": "custom"}, {"status": "affected", "version": "8.0", "lessThan": "ESXi80U3k-25595708", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "VMware", "product": "Telco Cloud Platform", "versions": [{"status": "affected", "version": "5.1.x"}, {"status": "affected", "version": "5.0.x"}], "defaultStatus": "unaffected"}], "datePublic": "2026-07-29T04:30:00.000Z", "references": [{"url": "https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/38017"}], "x_generator": {"engine": "Vulnogram 1.0.4"}, "descriptions": [{"lang": "en", "value": "VMware ESX contains an out-of-bounds write vulnerability in the VMXNET3 virtual network adapter.\u00a0A 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. Non VMXNET3 virtual adapters are not affected by this issue.", "supportingMedia": [{"type": "text/html", "value": "VMware ESX contains an out-of-bounds write vulnerability in the VMXNET3 virtual network adapter.&nbsp;<span>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. Non VMXNET3 virtual adapters are not affected by this issue.</span><br><br>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-787", "description": "CWE-787 Out-of-bounds write"}]}], "providerMetadata": {"orgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "shortName": "vmware", "dateUpdated": "2026-07-30T12:31:52.158Z"}}}, "cveMetadata": {"cveId": "CVE-2026-47876", "state": "PUBLISHED", "dateUpdated": "2026-07-30T13:02:29.161Z", "dateReserved": "2026-05-20T10:00:58.694Z", "assignerOrgId": "dcf2e128-44bd-42ed-91e8-88f912c1401d", "datePublished": "2026-07-30T12:31:52.158Z", "assignerShortName": "vmware"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Cloud Foundation", "vendor": "VMware", "versions": [{"status": "affected", "version": "9.1.x.x"}, {"status": "affected", "version": "9.0.x.x"}, {"status": "affected", "version": "5.x"}]}, {"defaultStatus": "unaffected", "product": "vSphere Foundation", "vendor": "VMware", "versions": [{"status": "affected", "version": "9.1.x.x"}, {"status": "affected", "version": "9.0.x.x"}]}, {"defaultStatus": "unaffected", "product": "ESX", "vendor": "VMware", "versions": [{"lessThan": "ESXi-9.1.0.0200-25557999", "status": "affected", "version": "9.1.x.x", "versionType": "custom"}, {"lessThan": "ESXi-9.0.2.0100-25595025", "status": "affected", "version": "9.0.x.x", "versionType": "custom"}, {"lessThan": "ESXi80U3k-25595708", "status": "affected", "version": "8.0", "versionType": "custom"}]}, {"defaultStatus": "unaffected", "product": "Telco Cloud Platform", "vendor": "VMware", "versions": [{"status": "affected", "version": "5.1.x"}, {"status": "affected", "version": "5.0.x"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "VMware ESX contains an out-of-bounds write vulnerability in the VMXNET3 virtual network adapter.\u00a0A 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. Non VMXNET3 virtual adapters are not affected by this issue."}], "id": "CVE-2026-47876", "lastModified": "2026-07-30T14:16:58.467", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 9.3, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 6.0, "source": "[email protected]", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-47876", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-07-30T13:02:22.733448Z", "version": "2.0.3"}}]}, "published": "2026-07-30T13:16:51.100", "references": [{"source": "[email protected]", "url": "https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/38017"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "[email protected]", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "9.1.x.x"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "9.0.x.x"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.x"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Cloud Foundation", "source": "cna", "vendor": "VMware"}, "product": "cloud_foundation", "vendor": "vmware"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[9.1.x.x,ESXi-9.1.0.0200-25557999)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[9.0.x.x,ESXi-9.0.2.0100-25595025)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[8.0,ESXi80U3k-25595708)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "ESX", "source": "cna", "vendor": "VMware"}, "product": "esx", "vendor": "vmware"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.1.x"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.0.x"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Telco Cloud Platform", "source": "cna", "vendor": "VMware"}, "product": "telco_cloud_platform", "vendor": "vmware"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "9.1.x.x"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "9.0.x.x"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "vSphere Foundation", "source": "cna", "vendor": "VMware"}, "product": "vsphere_foundation", "vendor": "vmware"}], "created": "2026-07-30T13:59:40.276220+00:00", "updated": "2026-08-02T05:30:06.554022+00:00", "vendors": ["vmware", "vmware$PRODUCT$cloud_foundation", "vmware$PRODUCT$esx", "vmware$PRODUCT$telco_cloud_platform", "vmware$PRODUCT$vsphere_foundation"]}