{"id":"CVE-2019-1226","aliases":["EUVD-2019-9793","GHSA-qcg4-w26w-fjv8"],"status":"published","title":"Remote Desktop Services Remote Code Execution Vulnerability","description":"A remote code execution vulnerability exists in Remote Desktop Services – formerly known as Terminal Services – when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests. This vulnerability is pre-authentication and requires no user interaction. An attacker who successfully exploited this vulnerability could execute arbitrary code on the target system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\nTo exploit this vulnerability, an attacker would need to send a specially crafted request to the target systems Remote Desktop Service via RDP.\nThe update addresses the vulnerability by correcting how Remote Desktop Services handles connection requests.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.08193,"percentile":0.9491,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2019-08-14T20:55:05Z","modified":"2026-06-17T02:28:08Z","products":[{"vendor":"microsoft","product":"windows 10 version 1803"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows 10 version 1903 for 32-bit systems"},{"vendor":"microsoft","product":"windows 10 version 1903 for arm64-based systems"},{"vendor":"microsoft","product":"windows 10 version 1903 for x64-based systems"},{"vendor":"microsoft","product":"windows 10 version 1909"},{"vendor":"microsoft","product":"windows server 2019"},{"vendor":"microsoft","product":"windows server 2019 (server core installation)"},{"vendor":"microsoft","product":"windows server, version 1803  (server core installation)"},{"vendor":"microsoft","product":"windows server, version 1903 (server core installation)"},{"vendor":"microsoft","product":"windows server, version 1909 (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-2019-1226","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20190819-01-windows-en","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-187667.pdf","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-1226"},{"url":"https://github.com/advisories/GHSA-qcg4-w26w-fjv8"}],"sources":{"cve":[{"id":"CVE-2019-1226","title":"Remote Desktop Services Remote Code Execution Vulnerability","description":"A remote code execution vulnerability exists in Remote Desktop Services – formerly known as Terminal Services – when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests. This vulnerability is pre-authentication and requires no user interaction. An attacker who successfully exploited this vulnerability could execute arbitrary code on the target system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\nTo exploit this vulnerability, an attacker would need to send a specially crafted request to the target systems Remote Desktop Service via RDP.\nThe update addresses the vulnerability by correcting how Remote Desktop Services handles connection requests.","status":"published","published":"2019-08-14T20:55:05Z","modified":"2024-08-04T18:13:29.557Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"critical","assessor":"cna"}],"updated_at":"2026-11-02T14:20:25.303966Z"}],"euvd":[{"id":"EUVD-2019-9793","description":"A remote code execution vulnerability exists in Remote Desktop Services – formerly known as Terminal Services – when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests. This vulnerability is pre-authentication and requires no user interaction. An attacker who successfully exploited this vulnerability could execute arbitrary code on the target system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\nTo exploit this vulnerability, an attacker would need to send a specially crafted request to the target systems Remote Desktop Service via RDP.\nThe update addresses the vulnerability by correcting how Remote Desktop Services handles connection requests.","status":"published","published":"2019-08-14T20:55:05Z","modified":"2024-08-04T18:13:29Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"critical"}],"updated_at":"2026-11-03T03:06:58.838317Z"}],"ghsa":[{"id":"GHSA-qcg4-w26w-fjv8","title":"A remote code execution vulnerability exists in Remote Desktop Services – formerly known as...","description":"A remote code execution vulnerability exists in Remote Desktop Services – formerly known as Terminal Services – when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests, aka 'Remote Desktop Services? Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2019-1181, CVE-2019-1182, CVE-2019-1222.","status":"published","published":"2022-05-24T22:28:54Z","modified":"2026-02-20T21:31:12Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:06:18.00539Z"}],"nvd":[{"id":"CVE-2019-1226","description":"A remote code execution vulnerability exists in Remote Desktop Services – formerly known as Terminal Services – when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests. This vulnerability is pre-authentication and requires no user interaction. An attacker who successfully exploited this vulnerability could execute arbitrary code on the target system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\nTo exploit this vulnerability, an attacker would need to send a specially crafted request to the target systems Remote Desktop Service via RDP.\nThe update addresses the vulnerability by correcting how Remote Desktop Services handles connection requests.","status":"published","published":"2019-08-14T21:15:18.877Z","modified":"2026-06-17T02:28:08.107Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:05:22.878504Z"}]}}