{"id":"CVE-2026-96857","aliases":["EUVD-2026-99781","GHSA-p8mh-75hx-r3fc"],"status":"published","title":"Windows Projected File System Information Disclosure Vulnerability","description":"Files or directories accessible to external parties in Windows Projected File System allows an authorized attacker to disclose information locally.","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":"2026-11-09","score":0.0038,"percentile":0.32289,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-552"],"published":"2026-10-13T19:00:34Z","modified":"2026-10-31T18:07:05Z","products":[{"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 23h2"},{"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 11 version 26h2"},{"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_1809"},{"vendor":"microsoft","product":"windows_10_21h2"},{"vendor":"microsoft","product":"windows_10_22h2"},{"vendor":"microsoft","product":"windows_11_23h2"},{"vendor":"microsoft","product":"windows_11_24h2"},{"vendor":"microsoft","product":"windows_11_25h2"},{"vendor":"microsoft","product":"windows_11_26h1"},{"vendor":"microsoft","product":"windows_11_26h2"},{"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-2026-96857","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-96857"},{"url":"https://github.com/advisories/GHSA-p8mh-75hx-r3fc"}],"sources":{"cve":[{"id":"CVE-2026-96857","title":"Windows Projected File System Information Disclosure Vulnerability","description":"Files or directories accessible to external parties in Windows Projected File System allows an authorized attacker to disclose information locally.","status":"published","published":"2026-10-13T19:00:34.315Z","modified":"2026-10-31T18:07:05.341Z","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-552"],"updated_at":"2026-11-02T14:20:00.511569Z"}],"euvd":[{"id":"EUVD-2026-99781","description":"Files or directories accessible to external parties in Windows Projected File System allows an authorized attacker to disclose information locally.","status":"published","published":"2026-10-13T19:00:34Z","modified":"2026-10-31T18:07:05Z","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":"2026-11-02T16:58:53.072245Z"}],"ghsa":[{"id":"GHSA-p8mh-75hx-r3fc","title":"Files or directories accessible to external parties in Windows Projected File System allows an...","description":"Files or directories accessible to external parties in Windows Projected File System allows an authorized attacker to disclose information locally.","status":"published","published":"2026-10-13T21:37:03Z","modified":"2026-10-13T21:37:09Z","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-552"],"updated_at":"2026-11-02T15:13:19.647865Z"}],"nvd":[{"id":"CVE-2026-96857","description":"Files or directories accessible to external parties in Windows Projected File System allows an authorized attacker to disclose information locally.","status":"published","published":"2026-10-13T19:21:59.51Z","modified":"2026-10-20T00:29:08.953Z","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-552"],"updated_at":"2026-11-02T14:12:58.630796Z"}]}}