{"id":"CVE-2023-21687","aliases":["EUVD-2023-25854","GHSA-mr4r-vfmp-v9q3"],"status":"published","title":"HTTP.sys Information Disclosure Vulnerability","description":"HTTP.sys Information Disclosure Vulnerability","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00465,"percentile":0.40731,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125","CWE-668"],"published":"2023-02-14T19:33:27Z","modified":"2026-08-19T18:32:47Z","products":[{"vendor":"microsoft","product":"windows 11 version 21h2"},{"vendor":"microsoft","product":"windows 11 version 22h2"},{"vendor":"microsoft","product":"windows server 2022"},{"vendor":"microsoft","product":"windows_11_21h2"},{"vendor":"microsoft","product":"windows_11_22h2"},{"vendor":"microsoft","product":"windows_server_2022"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21687","tags":["vendor-advisory","patch","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-21687"},{"url":"https://github.com/advisories/GHSA-mr4r-vfmp-v9q3"}],"sources":{"cve":[{"id":"CVE-2023-21687","title":"HTTP.sys Information Disclosure Vulnerability","description":"HTTP.sys Information Disclosure Vulnerability","status":"published","published":"2023-02-14T19:33:27.355Z","modified":"2026-08-19T16:27:02.097Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:35:20.368244Z"}],"euvd":[{"id":"EUVD-2023-25854","description":"HTTP.sys Information Disclosure Vulnerability","status":"published","published":"2023-02-14T19:33:27Z","modified":"2026-08-19T16:27:02Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-02T18:01:43.792814Z"}],"ghsa":[{"id":"GHSA-mr4r-vfmp-v9q3","title":"HTTP.sys Information Disclosure Vulnerability","description":"HTTP.sys Information Disclosure Vulnerability","status":"published","published":"2023-02-14T21:30:30Z","modified":"2026-08-19T18:32:47Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-125","CWE-668"],"updated_at":"2026-11-02T15:10:43.503566Z"}],"nvd":[{"id":"CVE-2023-21687","description":"HTTP.sys Information Disclosure Vulnerability","status":"published","published":"2023-02-14T20:15:12.537Z","modified":"2026-08-19T17:18:08.26Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-125","CWE-668"],"updated_at":"2026-11-02T14:07:46.811196Z"}]}}