{"id":"CVE-2026-56190","aliases":["EUVD-2026-44242","GHSA-p6h4-4rmr-4h27"],"status":"published","title":"Remote Desktop Protocol Remote Code Execution Vulnerability","description":"Use of uninitialized resource in Windows RDP allows an unauthorized attacker to execute code over a network.","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:U/RL:O/RC:C","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00974,"percentile":0.62358,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-908"],"published":"2026-07-14T17:09:18Z","modified":"2026-11-01T17:36:50Z","exploits":[{"source":"pocgithub","id":"Udyz/RDPBleed","title":"Udyz/RDPBleed","date":"2026-10-29","url":"https://github.com/Udyz/RDPBleed"},{"source":"pocgithub","id":"danarhirany300-ctrl/CVE-2026-56190-Full-RCE-Chainn","title":"danarhirany300-ctrl/CVE-2026-56190-Full-RCE-Chainn","date":"2026-11-04","url":"https://github.com/danarhirany300-ctrl/CVE-2026-56190-Full-RCE-Chainn"}],"products":[{"vendor":"microsoft","product":"windows 10 version 1607"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows 10 version 21h2"},{"vendor":"microsoft","product":"windows 10 version 22h2"},{"vendor":"microsoft","product":"windows 11 version 24h2"},{"vendor":"microsoft","product":"windows 11 version 25h2"},{"vendor":"microsoft","product":"windows 11 version 26h1"},{"vendor":"microsoft","product":"windows server 2012"},{"vendor":"microsoft","product":"windows server 2012 (server core installation)"},{"vendor":"microsoft","product":"windows server 2012 r2"},{"vendor":"microsoft","product":"windows server 2012 r2 (server core installation)"},{"vendor":"microsoft","product":"windows server 2016"},{"vendor":"microsoft","product":"windows server 2016 (server core installation)"},{"vendor":"microsoft","product":"windows server 2019"},{"vendor":"microsoft","product":"windows server 2019 (server core installation)"},{"vendor":"microsoft","product":"windows server 2022"},{"vendor":"microsoft","product":"windows server 2025"},{"vendor":"microsoft","product":"windows server 2025 (server core installation)"},{"vendor":"microsoft","product":"windows_10_1607"},{"vendor":"microsoft","product":"windows_10_1809"},{"vendor":"microsoft","product":"windows_10_21h2"},{"vendor":"microsoft","product":"windows_10_22h2"},{"vendor":"microsoft","product":"windows_11_24h2"},{"vendor":"microsoft","product":"windows_11_25h2"},{"vendor":"microsoft","product":"windows_11_26h1"},{"vendor":"microsoft","product":"windows_server_2012"},{"vendor":"microsoft","product":"windows_server_2016"},{"vendor":"microsoft","product":"windows_server_2019"},{"vendor":"microsoft","product":"windows_server_2022"},{"vendor":"microsoft","product":"windows_server_2025"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56190","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56190"},{"url":"https://github.com/advisories/GHSA-p6h4-4rmr-4h27"}],"sources":{"cve":[{"id":"CVE-2026-56190","title":"Remote Desktop Protocol Remote Code Execution Vulnerability","description":"Use of uninitialized resource in Windows RDP allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-07-14T17:09:18.669Z","modified":"2026-11-01T17:36:50.359Z","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:U/RL:O/RC:C","level":"critical","assessor":"cna"}],"cwes":["CWE-908"],"updated_at":"2026-11-02T13:36:51.6229Z"}],"euvd":[{"id":"EUVD-2026-44242","description":"Use of uninitialized resource in Windows RDP allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-07-14T17:09:18Z","modified":"2026-11-01T17:36:50Z","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:U/RL:O/RC:C","level":"critical"}],"updated_at":"2026-11-02T16:58:46.970263Z"}],"ghsa":[{"id":"GHSA-p6h4-4rmr-4h27","title":"Use of uninitialized resource in Windows RDP allows an unauthorized attacker to execute code over...","description":"Use of uninitialized resource in Windows RDP allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-07-14T18:32:38Z","modified":"2026-07-14T18:32:43Z","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"}],"cwes":["CWE-908"],"updated_at":"2026-11-02T15:09:30.715875Z"}],"nvd":[{"id":"CVE-2026-56190","description":"Use of uninitialized resource in Windows RDP allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-07-14T18:18:29.24Z","modified":"2026-07-22T16:18:27.27Z","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"}],"cwes":["CWE-908"],"updated_at":"2026-11-02T14:12:29.489525Z"}]}}