{"id":"CVE-2026-57084","aliases":["EUVD-2026-44263","GHSA-q3w6-43fx-586m"],"status":"published","title":"Windows File Explorer Information Disclosure Vulnerability","description":"Use of uninitialized resource in Windows File Explorer allows an unauthorized attacker to disclose information locally.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00541,"percentile":0.45834,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-908"],"published":"2026-07-14T17:09:30Z","modified":"2026-11-01T17:37:01Z","products":[{"vendor":"microsoft","product":"microsoft office 365 for mac"},{"vendor":"microsoft","product":"microsoft office for android"},{"vendor":"microsoft","product":"microsoft office ltsc for mac 2021"},{"vendor":"microsoft","product":"microsoft office ltsc for mac 2024"},{"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-2026-57084","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57084"},{"url":"https://github.com/advisories/GHSA-q3w6-43fx-586m"}],"sources":{"cve":[{"id":"CVE-2026-57084","title":"Windows File Explorer Information Disclosure Vulnerability","description":"Use of uninitialized resource in Windows File Explorer allows an unauthorized attacker to disclose information locally.","status":"published","published":"2026-07-14T17:09:30.158Z","modified":"2026-11-01T17:37:01.215Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-908"],"updated_at":"2026-11-02T13:43:44.898272Z"}],"euvd":[{"id":"EUVD-2026-44263","description":"Use of uninitialized resource in Windows File Explorer allows an unauthorized attacker to disclose information locally.","status":"published","published":"2026-07-14T17:09:30Z","modified":"2026-11-01T17:37:01Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-02T16:58:46.970263Z"}],"ghsa":[{"id":"GHSA-q3w6-43fx-586m","title":"Use of uninitialized resource in Windows File Explorer allows an unauthorized attacker to...","description":"Use of uninitialized resource in Windows File Explorer allows an unauthorized attacker to disclose information locally.","status":"published","published":"2026-07-14T18:32:38Z","modified":"2026-07-14T18:32:43Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-908"],"updated_at":"2026-11-02T15:09:30.715875Z"}],"nvd":[{"id":"CVE-2026-57084","description":"Use of uninitialized resource in Windows File Explorer allows an unauthorized attacker to disclose information locally.","status":"published","published":"2026-07-14T18:18:32.52Z","modified":"2026-10-28T20:18:12.96Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-908"],"updated_at":"2026-11-02T14:12:29.489525Z"}]}}