{"schema":"threatline.record/2","record":{"id":"CVE-2026-84420","aliases":[],"summary":"Out-of-Bounds Write and Out-of-Bounds Read","details":"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.","categories":["Network & edge"],"product":"Citrix Workspace app for Windows","vendor":"Citirx","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-84420","source_modified_at":"2026-10-14T18:26:55.638Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Citrix Workspace app for Windows","vendor":"Citirx","versions":[{"status":"affected","version":"0","lessThan":"2603.20 CR","versionType":"patch"},{"status":"affected","version":"0","lessThan":"LTSR 2607","versionType":"patch"},{"status":"affected","version":"0","lessThan":"LTSR 2507 CU3","versionType":"patch"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-84420","source_modified_at":"2026-10-14T18:26:55.638Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Citrix Workspace app for Windows","ecosystem":null},"version":"2603.20 CR","basis":"first unaffected version stated in the CVE record"}],"cvss":5.8,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00092,"percentile":0.00495,"score_date":"2026-10-23"},"published_at":"2026-10-13T21:47:44.392Z","modified_at":"2026-10-14T18:26:55.638Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-84420","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-14T18:26:55.638Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-84420","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697181"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-14T18:26:33.901287Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-14T18:26:55.638Z","content_hash":"7408d007e5bf9f48e321373b98cd2840e68b1a6c920c78c4dc45b18008733c4e"}}