{"schemaVersion":3,"id":"CVE-2019-1449","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A security feature bypass vulnerability exists in the way that Office Click-to-Run (C2R) components handle a specially crafted file, which could lead to a standard user, any AppContainer sandbox, and Office LPAC Protected View to escalate privileges to SYSTEM.To exploit this bug, an attacker would have to run a specially crafted file, aka 'Microsoft Office ClickToRun Security Feature Bypass Vulnerability'.","dates":{"published":"2019-11-12T18:53:19.000Z","modified":"2024-08-04T18:20:27.673Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":10,"severity":"high","version":"2.0","versionLabel":"v2.0","source":"NVD","vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/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":10,"severity":"high","vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.0681,"percentile":0.93948,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.0681},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0681,"percentile":0.93948}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0681,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0681,"percentile":0.93948}]},"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":[],"affected":[{"vendor":"microsoft","product":"microsoft office","name":"Microsoft Office","label":"microsoft office","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"2019 for 32-bit editions","noFixRecorded":false,"fixedIn":null},{"text":"2019 for 64-bit editions","noFixRecorded":false,"fixedIn":null}],"versionsText":"2019 for 32-bit editions | 2019 for 64-bit editions","eol":null,"hubHref":"/vendor/microsoft/microsoft_office"},{"vendor":"microsoft","product":"office","name":"office","label":"office","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"2019","noFixRecorded":false,"fixedIn":null}],"versionsText":"2019","eol":{"isEol":true,"eolDate":"2025-10-14T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"2019","label":"2019","eolFrom":"2025-10-14T00:00:00.000Z","isLts":false,"isMaintained":false,"latestVersion":null},"product":{"name":"office","label":"Microsoft Office","category":"app"}},"hubHref":"/vendor/microsoft/office"},{"vendor":"microsoft","product":"office_365_proplus","name":"office 365 proplus","label":"office_365_proplus","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"32-bit Systems","noFixRecorded":false,"fixedIn":null},{"text":"64-bit Systems","noFixRecorded":false,"fixedIn":null},{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"32-bit Systems | 64-bit Systems | na","eol":null,"hubHref":"/vendor/microsoft/office_365_proplus"}],"affectedCount":3,"eol":{"hasEol":true,"count":1},"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1449","label":"portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1449","hostname":"portal.msrc.microsoft.com","tags":["X Refsource MISC","Patch","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2019-11-12T18:53:19.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-04T18:20:27.673Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T20:51:13.956Z","stale":false,"partial":false}}