{"schemaVersion":3,"id":"CVE-2019-11634","aliases":[],"status":"published","duplicateOf":null,"title":"Citrix Workspace Application and Receiver for Windows Remote Code Execution Vulnerability","description":"Citrix Workspace App before 1904 for Windows has Incorrect Access Control.","dates":{"published":"2019-05-22T16:46:42.000Z","modified":"2026-08-12T03:55:49.649Z","reserved":null,"kevAdded":["2021-11-03T00:00:00.000Z"],"kevDue":["2022-05-03T00:00:00.000Z"]},"cvss":{"headline":{"score":9.8,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","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":"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":7.5,"severity":"high","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.08091,"percentile":0.94772,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.06499999999999978,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.08026},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.08091,"percentile":0.94772}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.08026,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.08091,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.08091,"percentile":0.94772}]},"kev":{"state":"listed","entries":[{"source":"cisa","sourceLabel":"CISA","dateAdded":"2021-11-03T00:00:00.000Z","dueDate":"2022-05-03T00:00:00.000Z","requiredAction":"Apply updates per vendor instructions.","name":"Citrix Workspace Application and Receiver for Windows Remote Code Execution Vulnerability","description":"Citrix Workspace Application and Receiver for Windows contains remote code execution vulnerability resulting from local drive access preferences not being enforced into the clients' local drives.","notes":[{"type":"url","href":"https://nvd.nist.gov/vuln/detail/CVE-2019-11634","label":"nvd.nist.gov/vuln/detail/CVE-2019-11634"}],"vendor":"Citrix","product":"Workspace Application and Receiver for Windows","ransomware":true,"ransomwareUse":"Known","exploitationType":null}],"listedCount":1,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":true,"entry":{"source":"cisa","sourceLabel":"CISA","dateAdded":"2021-11-03T00:00:00.000Z","dueDate":"2022-05-03T00:00:00.000Z","requiredAction":"Apply updates per vendor instructions.","name":"Citrix Workspace Application and Receiver for Windows Remote Code Execution Vulnerability","description":"Citrix Workspace Application and Receiver for Windows contains remote code execution vulnerability resulting from local drive access preferences not being enforced into the clients' local drives.","notes":[{"type":"url","href":"https://nvd.nist.gov/vuln/detail/CVE-2019-11634","label":"nvd.nist.gov/vuln/detail/CVE-2019-11634"}],"vendor":"Citrix","product":"Workspace Application and Receiver for Windows","ransomware":true,"ransomwareUse":"Known","exploitationType":null}},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"known","sources":["cisa"]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-284","name":"Improper Access Control","description":"The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.","type":"weakness","status":"Incomplete","abstraction":"Pillar","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/284.html"}],"affected":[{"vendor":"citrix","product":"receiver","name":"receiver","label":"receiver","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"4.9:cumulative_update_6","noFixRecorded":false,"fixedIn":null}],"versionsText":"4.9:cumulative_update_6","eol":null,"hubHref":"/vendor/citrix/receiver"},{"vendor":"citrix","product":"workspace","name":"workspace","label":"workspace","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 1904","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1904","eol":null,"hubHref":"/vendor/citrix/workspace"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://support.citrix.com/v1/search?searchQuery=%22%22&lang=en&sort=cr_date_desc&prod=&pver=&ct=Security+Bulletin","label":"support.citrix.com/v1/…","hostname":"support.citrix.com","tags":["X Refsource MISC","Vendor Advisory"]},{"url":"https://support.citrix.com/article/CTX251986","label":"support.citrix.com/article/CTX251986","hostname":"support.citrix.com","tags":["X Refsource CONFIRM","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-11634","label":"www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-11634","hostname":"www.cisa.gov","tags":["Government Resource","US Government Resource"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2019-05-22T16:46:42.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"kev-added","date":"2021-11-03T00:00:00.000Z","label":"Added to CISA KEV","detail":"Citrix Workspace Application and Receiver for Windows Remote Code Execution Vulnerability","source":"cisa"},{"kind":"kev-due","date":"2022-05-03T00:00:00.000Z","label":"CISA remediation due","detail":"Apply updates per vendor instructions.","source":"cisa"},{"kind":"modified","date":"2026-08-12T03:55:49.649Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":90,"level":"critical","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T21:45:33.513Z","stale":false,"partial":false}}