{"id":"CVE-2026-59346","aliases":["EUVD-2026-94168","GHSA-88p7-h25r-m6vw"],"status":"published","title":"VMware Workstation and Fusion VMXNET3 integer-overflow vulnerability","description":"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)","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":"2026-11-12","score":0.00408,"percentile":0.35579,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-190"],"published":"2026-10-07T05:40:03Z","modified":"2026-10-07T15:58:17Z","exploits":[{"source":"pocgithub","id":"0xCyberstan/CVE-2026-59346-POC","title":"0xCyberstan/CVE-2026-59346-POC","date":"2026-09-15","url":"https://github.com/0xCyberstan/CVE-2026-59346-POC"}],"products":[{"vendor":"vmware","product":"vmware fusion"},{"vendor":"vmware","product":"vmware workstation"}],"references":[{"url":"https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/security-advisories/0/38288"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59346"},{"url":"https://github.com/advisories/GHSA-88p7-h25r-m6vw"}],"sources":{"cve":[{"id":"CVE-2026-59346","title":"VMware Workstation and Fusion VMXNET3 integer-overflow vulnerability","description":"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)","status":"published","published":"2026-10-07T05:40:03.571Z","modified":"2026-10-07T11:29:55.791Z","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-190"],"updated_at":"2026-11-02T14:19:58.560602Z"}],"euvd":[{"id":"EUVD-2026-94168","description":"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)","status":"published","published":"2026-10-07T05:40:03Z","modified":"2026-10-07T11:29:55Z","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":"2026-11-02T17:27:35.509652Z"}],"ghsa":[{"id":"GHSA-88p7-h25r-m6vw","title":"VMware Workstation and Fusion contain an integer-overflow vulnerability. A malicious actor with...","description":"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)","status":"published","published":"2026-10-07T06:33:03Z","modified":"2026-10-07T06:33:08Z","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-190"],"updated_at":"2026-11-02T15:12:53.496212Z"}],"nvd":[{"id":"CVE-2026-59346","description":"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)","status":"published","published":"2026-10-07T06:16:35.543Z","modified":"2026-10-07T15:58:17.433Z","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-190"],"updated_at":"2026-11-02T14:12:54.809359Z"}]}}