{"id":"CVE-2026-47876","aliases":["EUVD-2026-51105","GHSA-8f48-75j5-mrf7"],"status":"published","title":"VMXNET3 out-of-bounds write vulnerability","description":"VMware ESX contains an out-of-bounds write vulnerability in the VMXNET3 virtual network adapter. 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.","severity":{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00192,"percentile":0.08875,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2026-07-30T12:31:52Z","modified":"2026-07-30T15:31:54Z","products":[{"vendor":"vmware","product":"cloud foundation"},{"vendor":"vmware","product":"esx"},{"vendor":"vmware","product":"telco cloud platform"},{"vendor":"vmware","product":"vsphere foundation"}],"references":[{"url":"https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/38017"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47876"},{"url":"https://github.com/advisories/GHSA-8f48-75j5-mrf7"}],"sources":{"cve":[{"id":"CVE-2026-47876","title":"VMXNET3 out-of-bounds write vulnerability","description":"VMware ESX contains an out-of-bounds write vulnerability in the VMXNET3 virtual network adapter. 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.","status":"published","published":"2026-07-30T12:31:52.158Z","modified":"2026-07-30T13:02:29.161Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T13:36:40.478484Z"}],"euvd":[{"id":"EUVD-2026-51105","description":"VMware ESX contains an out-of-bounds write vulnerability in the VMXNET3 virtual network adapter. 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.","status":"published","published":"2026-07-30T12:31:52Z","modified":"2026-07-30T13:02:29Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T18:02:28.93005Z"}],"ghsa":[{"id":"GHSA-8f48-75j5-mrf7","title":"VMware ESX contains an out-of-bounds write vulnerability in the VMXNET3 virtual network adapter....","description":"VMware ESX contains an out-of-bounds write vulnerability in the VMXNET3 virtual network adapter. 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.","status":"published","published":"2026-07-30T15:31:50Z","modified":"2026-07-30T15:31:54Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:09:56.692541Z"}],"nvd":[{"id":"CVE-2026-47876","description":"VMware ESX contains an out-of-bounds write vulnerability in the VMXNET3 virtual network adapter. 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.","status":"published","published":"2026-07-30T13:16:51.1Z","modified":"2026-07-30T14:16:58.467Z","cvss":[{"version":"3.1","score":9.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:12:33.955581Z"}]}}