{"id":"CVE-2023-21803","aliases":["EUVD-2023-25970","GHSA-rjwv-mm96-c3w9"],"status":"published","title":"Windows iSCSI Discovery Service Remote Code Execution Vulnerability","description":"Windows iSCSI Discovery Service Remote Code Execution Vulnerability","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":"2026-11-12","score":0.01765,"percentile":0.78386,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-190"],"published":"2023-02-14T19:33:08Z","modified":"2026-08-19T17:18:16Z","products":[{"vendor":"microsoft","product":"windows 10 version 1507"},{"vendor":"microsoft","product":"windows 10 version 1607"},{"vendor":"microsoft","product":"windows 10 version 1809"},{"vendor":"microsoft","product":"windows 10 version 20h2"},{"vendor":"microsoft","product":"windows 10 version 21h2"},{"vendor":"microsoft","product":"windows 10 version 22h2"},{"vendor":"microsoft","product":"windows server 2008 service pack 2"},{"vendor":"microsoft","product":"windows server 2008 service pack 2 (server core installation)"},{"vendor":"microsoft","product":"windows_10"},{"vendor":"microsoft","product":"windows_10_1607"},{"vendor":"microsoft","product":"windows_10_1809"},{"vendor":"microsoft","product":"windows_10_20h2"},{"vendor":"microsoft","product":"windows_10_21h2"},{"vendor":"microsoft","product":"windows_10_22h2"},{"vendor":"microsoft","product":"windows_server_2008"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21803","tags":["vendor-advisory","patch","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-21803"},{"url":"https://github.com/advisories/GHSA-rjwv-mm96-c3w9"}],"sources":{"cve":[{"id":"CVE-2023-21803","title":"Windows iSCSI Discovery Service Remote Code Execution Vulnerability","description":"Windows iSCSI Discovery Service Remote Code Execution Vulnerability","status":"published","published":"2023-02-14T19:33:08.749Z","modified":"2026-08-19T16:26:50.309Z","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-190"],"updated_at":"2026-11-02T14:35:19.959682Z"}],"euvd":[{"id":"EUVD-2023-25970","description":"Windows iSCSI Discovery Service Remote Code Execution Vulnerability","status":"published","published":"2023-02-14T19:33:08Z","modified":"2026-08-19T16:26:50Z","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":"2026-11-02T18:01:43.792814Z"}],"ghsa":[{"id":"GHSA-rjwv-mm96-c3w9","title":"Windows iSCSI Discovery Service Remote Code Execution Vulnerability","description":"Windows iSCSI Discovery Service Remote Code Execution Vulnerability","status":"published","published":"2023-02-14T21:30:29Z","modified":"2023-02-14T21:30:36Z","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":"2026-11-02T14:54:07.544087Z"}],"nvd":[{"id":"CVE-2023-21803","description":"Windows iSCSI Discovery Service Remote Code Execution Vulnerability","status":"published","published":"2023-02-14T20:15:15.503Z","modified":"2026-08-19T17:18:16.443Z","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-190"],"updated_at":"2026-11-02T14:07:46.811196Z"}]}}