{"schemaVersion":3,"id":"CVE-2026-84420","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Out-of-bounds read vulnerability in Citirx Citrix Workspace app for Windows.\n\nThis issue affects Citrix Workspace app for Windows: before 2603.20 CR, before LTSR 2607, and before LTSR 2507 CU3.","dates":{"published":"2026-10-13T21:47:44.392Z","modified":"2026-10-14T18:26:55.638Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":5.8,"severity":"medium","version":"4.0","versionLabel":"v4.0","source":"CVE.org","vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":5.8,"severity":"medium","vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":5.8,"severity":"medium","vector":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00092,"percentile":0.00496,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[{"date":"2026-10-14T00:00:00.000Z","score":0.00092,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00092,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00092,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00092,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00092,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00092,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00092,"percentile":0.00496}],"last30":[{"date":"2026-10-14T00:00:00.000Z","score":0.00092,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00092,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00092,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00092,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00092,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00092,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00092,"percentile":0.00496}]},"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-125","name":"Out-of-bounds Read","description":"The product reads data past the end, or before the beginning, of the intended buffer.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/125.html"}],"affected":[{"vendor":"citirx","product":"citrix workspace app for windows","name":"Citrix Workspace app for Windows","label":"citrix workspace app for windows","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 2603.20 CR","noFixRecorded":false,"fixedIn":null},{"text":"< LTSR 2607","noFixRecorded":false,"fixedIn":null},{"text":"< LTSR 2507 CU3","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2603.20 CR | < LTSR 2607 | < LTSR 2507 CU3","eol":null,"hubHref":"/vendor/citirx/citrix_workspace_app_for_windows"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697181","label":"support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697181","hostname":"support.citrix.com","tags":[]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-10-13T21:47:44.392Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-14T18:26:55.638Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":23,"level":"low","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T01:34:00.788Z","stale":false,"partial":false}}