{"schemaVersion":3,"id":"CVE-2018-8444","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"An information disclosure vulnerability exists in the way that the Microsoft Server Message Block 2.0 (SMBv2) server handles certain requests, aka \"Windows SMB Information Disclosure Vulnerability.\" This affects Windows Server 2012, Windows 10, Windows 8.1, Windows RT 8.1, Windows Server 2012 R2.","dates":{"published":"2018-09-13T00:00:00.000Z","modified":"2024-08-05T06:54:36.651Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":5.9,"severity":"medium","version":"3.0","versionLabel":"v3.0","source":"NVD","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":5.9,"severity":"medium","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":4.3,"severity":"medium","vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.05859,"percentile":0.9316,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":-0.0559999999999998,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.05915},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.05915,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.05859,"percentile":0.9316}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.05915,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.05859,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.05859,"percentile":0.9316}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor","description":"The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/200.html"}],"affected":[{"vendor":"microsoft","product":"windows_10","name":"windows 10","label":"windows_10","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"32-bit Systems","noFixRecorded":false,"fixedIn":null},{"text":"x64-based Systems","noFixRecorded":false,"fixedIn":null},{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"32-bit Systems | x64-based Systems | na","eol":null,"hubHref":"/vendor/microsoft/windows_10"},{"vendor":"microsoft","product":"windows_8.1","name":"windows 8.1","label":"windows_8.1","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"32-bit systems","noFixRecorded":false,"fixedIn":null},{"text":"x64-based systems","noFixRecorded":false,"fixedIn":null},{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"32-bit systems | x64-based systems | na","eol":null,"hubHref":"/vendor/microsoft/windows_81"},{"vendor":"microsoft","product":"windows_rt_8.1","name":"windows rt 8.1","label":"windows_rt_8.1","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"Windows RT 8.1","noFixRecorded":false,"fixedIn":null},{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"Windows RT 8.1 | na","eol":null,"hubHref":"/vendor/microsoft/windows_rt_81"},{"vendor":"microsoft","product":"windows server 2012","name":"Windows Server 2012","label":"windows server 2012","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"(Server Core installation)","noFixRecorded":false,"fixedIn":null},{"text":"na","noFixRecorded":false,"fixedIn":null},{"text":"r2","noFixRecorded":false,"fixedIn":null}],"versionsText":"(Server Core installation) | na | r2","eol":null,"hubHref":"/vendor/microsoft/windows_server_2012"},{"vendor":"microsoft","product":"windows server 2012 r2","name":"Windows Server 2012 R2","label":"windows server 2012 r2","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"(Server Core installation)","noFixRecorded":false,"fixedIn":null}],"versionsText":"(Server Core installation)","eol":null,"hubHref":"/vendor/microsoft/windows_server_2012_r2"}],"affectedCount":5,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8444","label":"portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8444","hostname":"portal.msrc.microsoft.com","tags":["X Refsource CONFIRM","Patch","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/105226","label":"www.securityfocus.com/bid/105226","hostname":"www.securityfocus.com","tags":["VDB Entry","X Refsource BID","Third Party Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2018-09-13T00:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-05T06:54:36.651Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":25,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T23:45:14.938Z","stale":false,"partial":false}}