{"id":"CVE-2019-0717","aliases":["EUVD-2019-1477","GHSA-vh9p-fw52-m8xc"],"status":"published","title":"Windows Hyper-V Denial of Service Vulnerability","description":"A denial of service vulnerability exists when Microsoft Hyper-V Network Switch on a host server fails to properly validate input from a privileged user on a guest operating system. An attacker who successfully exploited the vulnerability could cause the host server to crash.\nTo exploit the vulnerability, an attacker who already has a privileged account on a guest operating system, running as a virtual machine, could run a specially crafted application that causes a host machine to crash.\nThe update addresses the vulnerability by modifying how virtual machines access the Hyper-V Network Switch.","severity":{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H/E:P/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.05096,"percentile":0.9242,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2019-08-14T20:55:01Z","modified":"2026-06-17T02:08:45Z","products":[{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows 10 version 1903 for x64-based systems"},{"vendor":"microsoft","product":"windows server 2019"},{"vendor":"microsoft","product":"windows server 2019 (server core installation)"},{"vendor":"microsoft","product":"windows server, version 1903 (server core installation)"},{"vendor":"microsoft","product":"windows_10"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0717","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-0717"},{"url":"https://github.com/advisories/GHSA-vh9p-fw52-m8xc"}],"sources":{"cve":[{"id":"CVE-2019-0717","title":"Windows Hyper-V Denial of Service Vulnerability","description":"A denial of service vulnerability exists when Microsoft Hyper-V Network Switch on a host server fails to properly validate input from a privileged user on a guest operating system. An attacker who successfully exploited the vulnerability could cause the host server to crash.\nTo exploit the vulnerability, an attacker who already has a privileged account on a guest operating system, running as a virtual machine, could run a specially crafted application that causes a host machine to crash.\nThe update addresses the vulnerability by modifying how virtual machines access the Hyper-V Network Switch.","status":"published","published":"2019-08-14T20:55:01Z","modified":"2024-08-04T17:51:27.327Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H/E:P/RL:O/RC:C","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:32:24.473448Z"}],"euvd":[{"id":"EUVD-2019-1477","description":"A denial of service vulnerability exists when Microsoft Hyper-V Network Switch on a host server fails to properly validate input from a privileged user on a guest operating system. An attacker who successfully exploited the vulnerability could cause the host server to crash.\nTo exploit the vulnerability, an attacker who already has a privileged account on a guest operating system, running as a virtual machine, could run a specially crafted application that causes a host machine to crash.\nThe update addresses the vulnerability by modifying how virtual machines access the Hyper-V Network Switch.","status":"published","published":"2019-08-14T20:55:01Z","modified":"2024-08-04T17:51:27Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H/E:P/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-03T03:07:00.558698Z"}],"ghsa":[{"id":"GHSA-vh9p-fw52-m8xc","title":"A denial of service vulnerability exists when Microsoft Hyper-V Network Switch on a host server...","description":"A denial of service vulnerability exists when Microsoft Hyper-V Network Switch on a host server fails to properly validate input from a privileged user on a guest operating system, aka 'Windows Hyper-V Denial of Service Vulnerability'. This CVE ID is unique from CVE-2019-0714, CVE-2019-0715, CVE-2019-0718, CVE-2019-0723.","status":"published","published":"2022-05-24T16:53:27Z","modified":"2024-04-04T01:39:01Z","cvss":[{"version":"3.0","score":6.2,"vector":"CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:56:01.233613Z"}],"nvd":[{"id":"CVE-2019-0717","description":"A denial of service vulnerability exists when Microsoft Hyper-V Network Switch on a host server fails to properly validate input from a privileged user on a guest operating system. An attacker who successfully exploited the vulnerability could cause the host server to crash.\nTo exploit the vulnerability, an attacker who already has a privileged account on a guest operating system, running as a virtual machine, could run a specially crafted application that causes a host machine to crash.\nThe update addresses the vulnerability by modifying how virtual machines access the Hyper-V Network Switch.","status":"published","published":"2019-08-14T21:15:12.783Z","modified":"2026-06-17T02:08:45.733Z","cvss":[{"version":"3.1","score":5.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"2.0","score":5.5,"vector":"AV:A/AC:L/Au:S/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:05:22.878504Z"}]}}