{"schemaVersion":3,"id":"CVE-2026-22569","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"An incorrect startup configuration of affected versions of Zscaler Client Connector on Windows may cause a limited amount of traffic from being inspected under rare circumstances.","dates":{"published":"2026-03-31T14:54:57.241Z","modified":"2026-03-31T17:24:13.723Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":5.4,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":5.4,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":5.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00178,"percentile":0.06924,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00178},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00178,"percentile":0.06924}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00178,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00178,"percentile":0.06924}]},"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-1289","name":"Improper Validation of Unsafe Equivalence in Input","description":"The product receives an input value that is used as a resource identifier or other type of reference, but it does not validate or incorrectly validates that the input is equivalent to a potentially-unsafe value.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/1289.html"}],"affected":[{"vendor":"zscaler","product":"client_connector","name":"client connector","label":"client_connector","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 4.7, < 4.7.0.141","noFixRecorded":false,"fixedIn":null},{"text":"≥ 4.8, < 4.8.0.63","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 4.7, < 4.7.0.141 | ≥ 4.8, < 4.8.0.63","eol":null,"hubHref":"/vendor/zscaler/client_connector"},{"vendor":"zscaler","product":"zscaler client connector","name":"Zscaler Client Connector","label":"zscaler client connector","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 4.7, < 4.7.0.141","noFixRecorded":false,"fixedIn":null},{"text":"≥ 4.8, < 4.8.0.63","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 4.7, < 4.7.0.141 | ≥ 4.8, < 4.8.0.63","eol":null,"hubHref":"/vendor/zscaler/zscaler_client_connector"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2025","label":"help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2025","hostname":"help.zscaler.com","tags":["Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-03-31T14:54:57.241Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-03-31T17:24:13.723Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":22,"level":"low","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T13:54:28.936Z","stale":false,"partial":false}}