{"metadata": {"vulnerability": "CVE-2026-53920", "count": 10, "kinds": {"milestone": 3, "sighting": 1, "kev": 0, "other": 6}}, "data": [{"timestamp": "2026-06-11T15:46:12.316Z", "date_only": false, "value": "2026-06-11T15:46:12.316Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-53920", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-10-23T13:20:48.045Z", "date_only": false, "value": "2026-10-23T13:20:48.045Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-53920", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-10-23T13:20:48.045Z", "date_only": false, "value": "2026-10-23T13:20:48.045Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / GitHub_M", "record": "CVE-2026-53920", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-23T14:17:53.573Z", "date_only": false, "value": "2026-10-23T14:17:53.573", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-53920", "record": "FKIE_CVE-2026-53920", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-10-23T14:56:48.558Z", "date_only": false, "value": "2026-10-23T14:56:48.558578Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117490804820645270", "record": "CVE-2026-53920", "field": "creation_timestamp", "uuid": "c820d148-3efd-49cf-8ac8-2e5f70f96221", "content": "CVE-2026-53920 odhcpd DHCPv6 Short IA_NA/IA_PD Body Stack Disclosure odhcpd is the DHCPv6, DHCPv4, and router-advertisement server used by OpenWrt. From version 17.01.0 to before version 25.12.3, odhcpd's DHCPv6 IA parser accepts an IA_NA or IA_PD option whose body is shorter than struct dhcpv6_ia_hdr, casts the option header to that full structure, and reads ia->iaid before proving that the IA body contains the IAID field. If an unauthenticated network-adjacent client places a zero-length or otherwise short IA option at the end of odhcpd's 8192-byte receive stack buffer, the IAID read crosses from data_buf into adjacent stack memory. The disclosed bytes are then reflected in the DHCPv6 reply IAID; prior ARM validation showed data_buf[8192:8196] disclosing the saved stack canary, and wider stack scans can leak ASLR-useful stack/process contents. This issue has been patched in version 25.12.3.\nhttps://www.cve.org/CVERecord?id=CVE-2026-53920https://github.com/openwrt/odhcpd/security/advisories/GHSA-p769-5v73-pc4fhttps://github.com/openwrt/odhcpd/commit/719fc3abc0d7e7059871f9f572fb05ada86b8ff2https://github.com/openwrt/odhcpd/commit/f2275efc72a87a95f971f159babcbadc5d241d42#openwrt #odhcpd#CVE_2026_53920#bot", "url": "https://infosec.exchange/users/cve/statuses/117490804820645270"}, {"timestamp": "2026-10-23T17:33:12.791Z", "date_only": false, "value": "2026-10-23T17:33:12.791918Z", "kind": "other", "label": "Recorded", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-53920", "field": "containers.adp.0.metrics.0.other.content.timestamp"}, {"timestamp": "2026-10-23T17:33:12.791Z", "date_only": false, "value": "2026-10-23T17:33:12.791918Z", "kind": "other", "label": "Recorded", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-53920", "record": "FKIE_CVE-2026-53920", "field": "metrics.ssvcV203.0.ssvcData.timestamp", "linked_record": true}, {"timestamp": "2026-10-23T20:58:10.536Z", "date_only": false, "value": "2026-10-23T20:58:10.536Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-53920", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-10-23T20:58:10.536Z", "date_only": false, "value": "2026-10-23T20:58:10.536Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / CISA-ADP", "record": "CVE-2026-53920", "field": "containers.adp.0.providerMetadata.dateUpdated"}, {"timestamp": "2026-10-23T21:17:23.897Z", "date_only": false, "value": "2026-10-23T21:17:23.897", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-53920", "record": "FKIE_CVE-2026-53920", "field": "lastModified", "linked_record": true}], "metrics": {"as_of": "2026-11-03T20:26:10.080Z", "anchors": {"origin": {"timestamp": "2026-10-23T13:20:48.045Z", "date_only": false, "value": "2026-10-23T13:20:48.045Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-53920", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "discovery": null, "report": null, "acknowledgement": null, "disclosure": {"timestamp": "2026-10-23T13:20:48.045Z", "date_only": false, "value": "2026-10-23T13:20:48.045Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-53920", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "exploit_publication": null, "exploitation": null, "patch": null}, "vendor_response_time": {"available": false, "missing": ["start", "end"]}, "time_to_exploit": {"available": false, "missing": ["end"]}, "disclosure_to_exploit": {"available": false, "missing": ["end"]}, "disclosure_to_exploit_publication": {"available": false, "missing": ["end"]}, "time_to_patch": {"available": false, "missing": ["start", "end"]}, "total_time_to_patch": {"available": false, "missing": ["start", "end"]}, "disclosure_to_patch": {"available": false, "missing": ["end"]}, "time_unpatched": {"available": true, "seconds": 975922.035661, "hours": 271.0894543502778, "days": 11.295393931261573, "min_seconds": 975922.035661, "max_seconds": 975922.035661, "approximate": false, "ongoing": true, "order_known": true, "batch_listing": false, "end_before_start": false, "start": {"timestamp": "2026-10-23T13:20:48.045Z", "date_only": false, "value": "2026-10-23T13:20:48.045Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-53920", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "end": {"timestamp": "2026-11-03T20:26:10.080Z", "date_only": false, "label": "As of", "source": "Calculation clock"}}, "exploitation_to_patch": {"available": false, "missing": ["start"]}, "exploit_publication_to_patch": {"available": false, "missing": ["start"]}}}