{"metadata": {"vulnerability": "usn-4256-1", "count": 4, "kinds": {"milestone": 2, "sighting": 0, "kev": 0, "other": 2}}, "data": [{"timestamp": "2019-12-19T18:15:00Z", "date_only": false, "value": "2019-12-19T18:15:00Z", "kind": "milestone", "label": "Published", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2019-19906", "record": "UBUNTU-CVE-2019-19906", "field": "published"}, {"timestamp": "2020-01-28T13:00:48Z", "date_only": false, "value": "2020-01-28T13:00:48Z", "kind": "milestone", "label": "Published", "source": "osv_ubuntu", "record": "usn-4256-1", "field": "published"}, {"timestamp": "2026-04-22T07:39:13Z", "date_only": false, "value": "2026-04-22T07:39:13Z", "kind": "other", "label": "Updated", "source": "osv_ubuntu \u00b7 UBUNTU-CVE-2019-19906", "record": "UBUNTU-CVE-2019-19906", "field": "modified"}, {"timestamp": "2026-06-29T10:52:44Z", "date_only": false, "value": "2026-06-29T10:52:44Z", "kind": "other", "label": "Updated", "source": "osv_ubuntu", "record": "usn-4256-1", "field": "modified"}]}