{"schema":"threatline.record/2","record":{"id":"CVE-2026-53420","aliases":[],"summary":"Buffer overflow in a Zoom Phone feature of Zoom Workplace Clients may allow an unauthenticated user to conduct a escalation of privilege via network access.","details":"Buffer overflow in a Zoom Phone feature of Zoom Workplace Clients may allow an unauthenticated user to conduct a escalation of privilege via network access.","categories":["Unclassified"],"product":"Zoom Workplace","vendor":"Zoom Communications","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-53420","source_modified_at":"2026-10-14T03:59:02.674Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Zoom Workplace","vendor":"Zoom Communications","versions":[{"status":"affected","version":"0","lessThan":"7.2.0","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-53420","source_modified_at":"2026-10-14T03:59:02.674Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"Zoom Workplace","ecosystem":null},"version":"7.2.0","basis":"first unaffected version stated in the CVE record"}],"cvss":8,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00252,"percentile":0.1572,"score_date":"2026-10-23"},"published_at":"2026-10-13T14:22:00.033Z","modified_at":"2026-10-14T03:59:02.674Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-53420","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-14T03:59:02.674Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-53420","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://www.zoom.com/en/trust/security-bulletin/zsb-26020"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"total","assessed_at":"2026-10-13T00:00:00+00:00"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-14T03:59:02.674Z","content_hash":"b7ae5fc29a28fb1b7c25d24fb04cc14bca4dc920f1bd48169c67318b0473c14e"}}