{"schemaVersion":3,"id":"CVE-2018-8342","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"An elevation of privilege vulnerability exists in the Network Driver Interface Specification (NDIS) when ndis.sys fails to check the length of a buffer prior to copying memory to it, aka \"Windows NDIS Elevation of Privilege Vulnerability.\" This affects Windows 7, Windows Server 2008 R2. This CVE ID is unique from CVE-2018-8343.","dates":{"published":"2018-08-15T17:00:00.000Z","modified":"2024-08-05T06:54:35.307Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.8,"severity":"high","version":"3.0","versionLabel":"v3.0","source":"NVD","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":7.8,"severity":"high","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":7.2,"severity":"high","vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.01291,"percentile":0.69855,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0.098,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.01193},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0167,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01291,"percentile":0.69855}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0167,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01193,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.01291,"percentile":0.69855}]},"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-120","name":"Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')","description":"The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/120.html"}],"affected":[{"vendor":"microsoft","product":"windows_7","name":"windows 7","label":"windows_7","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"32-bit Systems Service Pack 1","noFixRecorded":false,"fixedIn":null},{"text":"x64-based Systems Service Pack 1","noFixRecorded":false,"fixedIn":null},{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"32-bit Systems Service Pack 1 | x64-based Systems Service Pack 1 | na","eol":null,"hubHref":"/vendor/microsoft/windows_7"},{"vendor":"microsoft","product":"windows_server_2008","name":"windows server 2008","label":"windows_server_2008","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"r2:sp1","noFixRecorded":false,"fixedIn":null}],"versionsText":"r2:sp1","eol":null,"hubHref":"/vendor/microsoft/windows_server_2008"},{"vendor":"microsoft","product":"windows server 2008 r2","name":"Windows Server 2008 R2","label":"windows server 2008 r2","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"Itanium-Based Systems Service Pack 1","noFixRecorded":false,"fixedIn":null},{"text":"x64-based Systems Service Pack 1","noFixRecorded":false,"fixedIn":null},{"text":"x64-based Systems Service Pack 1 (Server Core installation)","noFixRecorded":false,"fixedIn":null}],"versionsText":"Itanium-Based Systems Service Pack 1 | x64-based Systems Service Pack 1 | x64-based Systems Service Pack 1 (Server Core installation)","eol":null,"hubHref":"/vendor/microsoft/windows_server_2008_r2"}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"http://www.securityfocus.com/bid/104975","label":"www.securityfocus.com/bid/104975","hostname":"www.securityfocus.com","tags":["VDB Entry","X Refsource BID","Third Party Advisory"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8342","label":"portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8342","hostname":"portal.msrc.microsoft.com","tags":["X Refsource CONFIRM","Patch","Vendor Advisory"]},{"url":"http://www.securitytracker.com/id/1041466","label":"www.securitytracker.com/id/1041466","hostname":"www.securitytracker.com","tags":["VDB Entry","X Refsource SECTRACK","Third Party Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2018-08-15T17:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-05T06:54:35.307Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":31,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T19:25:45.603Z","stale":false,"partial":false}}