{"metadata": {"vulnerability": "CVE-2026-99283", "count": 10, "kinds": {"milestone": 4, "sighting": 1, "kev": 0, "other": 5}}, "data": [{"timestamp": "2026-09-25T10:25:14.405Z", "date_only": false, "value": "2026-09-25T10:25:14.405Z", "kind": "milestone", "label": "Reserved", "source": "cvelistv5", "record": "CVE-2026-99283", "field": "cveMetadata.dateReserved"}, {"timestamp": "2026-11-07T20:14:11.433Z", "date_only": false, "value": "2026-11-07T20:14:11.433Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99283", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, {"timestamp": "2026-11-07T20:14:11.433Z", "date_only": false, "value": "2026-11-07T20:14:11.433Z", "kind": "other", "label": "Updated", "source": "cvelistv5", "record": "CVE-2026-99283", "field": "cveMetadata.dateUpdated"}, {"timestamp": "2026-11-07T20:14:11.433Z", "date_only": false, "value": "2026-11-07T20:14:11.433Z", "kind": "other", "label": "Updated", "source": "cvelistv5 / Linux", "record": "CVE-2026-99283", "field": "containers.cna.providerMetadata.dateUpdated"}, {"timestamp": "2026-11-07T20:20:20.766Z", "date_only": false, "value": "2026-11-07T20:20:20.766505Z", "kind": "sighting", "label": "Seen", "source": "https://infosec.exchange/users/cve/statuses/117577011711658079", "record": "CVE-2026-99283", "field": "creation_timestamp", "uuid": "1185d23c-0cf9-43c6-b1af-3551f931c392", "content": "CVE-2026-99283 netfilter: conntrack: tcp: use UNACK timeout for non-closing RST packets In the Linux kernel, the following vulnerability has been resolved:\nnetfilter: conntrack: tcp: use UNACK timeout for non-closing RST packets\nCommit be0502a3f2e9 (\"netfilter: conntrack: tcp: only close if RSTmatches exact sequence\") keeps an established conntrack entry inESTABLISHED when an in-window RST does not match the expected sequencenumber exactly, so the endpoint can validate the RST with a challengeACK.\nThe timeout selection nevertheless uses the CLOSE timeout for every RSTpacket.  The bug is that timeout selection is based on the packet type,not on the state transition result: even when RST validation keepsnew_state in ESTABLISHED, the timeout is still forced toTCP_CONNTRACK_CLOSE.\nLinux TCP independently rate limits challenge ACKs per socket.  A secondnon-exact RST can therefore arrive after the first challenge ACK hasrestored the timeout but before the rate limit expires.  The second RSTlowers the timeout to 10 seconds again while the endpoint suppresses thesecond challenge ACK, allowing the conntrack entry to expire while bothTCP endpoints remain established.\nUsing the ESTABLISHED timeout for such RSTs would avoid this shortexpiration window, but it could also retain stale entries for thefive-day default because conntrack cannot reliably match the endpoint'sexact TCP state.\nUse the UNACK timeout for RST packets that leave the conntrack entry inTCP_CONNTRACK_ESTABLISHED.  Exact-match RSTs and accepted RST packettrains still fall through to timeouts[new_state], which preserves theCLOSE timeout when conntrack accepts the RST as closing the flow.\nThis avoids the aggressive 10-second expiration window for non-exactRSTs while preserving the short timeout for RSTs that conntrack acceptsas closing the flow.\nhttps://www.cve.org/CVERecord?id=CVE-2026-99283https://git.kernel.org/stable/c/0c6d33329960b2d884a399196c8403643d8a9de6https://git.kernel.org/stable/c/bf80e6802273a900311b44e47c9b1a59c6d2473c#kernel #Linux#CVE_2026_99283#bot", "url": "https://infosec.exchange/users/cve/statuses/117577011711658079"}, {"timestamp": "2026-11-07T21:17:00Z", "date_only": false, "value": "2026-11-07T21:17:00Z", "kind": "other", "label": "Nvd published at", "source": "github \u00b7 GHSA-CR3V-F62W-CWX5", "record": "GHSA-CR3V-F62W-CWX5", "field": "database_specific.nvd_published_at", "linked_record": true}, {"timestamp": "2026-11-07T21:17:00.477Z", "date_only": false, "value": "2026-11-07T21:17:00.477", "kind": "milestone", "label": "Published", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-99283", "record": "FKIE_CVE-2026-99283", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-11-07T21:17:00.477Z", "date_only": false, "value": "2026-11-07T21:17:00.477", "kind": "other", "label": "Updated", "source": "fkie_nvd \u00b7 FKIE_CVE-2026-99283", "record": "FKIE_CVE-2026-99283", "field": "lastModified", "linked_record": true}, {"timestamp": "2026-11-07T21:31:15Z", "date_only": false, "value": "2026-11-07T21:31:15Z", "kind": "milestone", "label": "Published", "source": "github \u00b7 GHSA-CR3V-F62W-CWX5", "record": "GHSA-CR3V-F62W-CWX5", "field": "published", "metric_role": "disclosure", "metric_basis": "recorded_event", "linked_record": true}, {"timestamp": "2026-11-07T21:31:15Z", "date_only": false, "value": "2026-11-07T21:31:15Z", "kind": "other", "label": "Updated", "source": "github \u00b7 GHSA-CR3V-F62W-CWX5", "record": "GHSA-CR3V-F62W-CWX5", "field": "modified", "linked_record": true}], "metrics": {"as_of": "2026-11-08T05:19:29.002Z", "anchors": {"origin": {"timestamp": "2026-11-07T20:14:11.433Z", "date_only": false, "value": "2026-11-07T20:14:11.433Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99283", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "discovery": null, "report": null, "acknowledgement": null, "disclosure": {"timestamp": "2026-11-07T20:14:11.433Z", "date_only": false, "value": "2026-11-07T20:14:11.433Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99283", "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": 32717.569137, "hours": 9.088213649166667, "days": 0.37867556871527774, "min_seconds": 32717.569137, "max_seconds": 32717.569137, "approximate": false, "ongoing": true, "order_known": true, "batch_listing": false, "end_before_start": false, "start": {"timestamp": "2026-11-07T20:14:11.433Z", "date_only": false, "value": "2026-11-07T20:14:11.433Z", "kind": "milestone", "label": "Published", "source": "cvelistv5", "record": "CVE-2026-99283", "field": "cveMetadata.datePublished", "metric_role": "disclosure", "metric_basis": "recorded_event"}, "end": {"timestamp": "2026-11-08T05:19:29.002Z", "date_only": false, "label": "As of", "source": "Calculation clock"}}, "exploitation_to_patch": {"available": false, "missing": ["start"]}, "exploit_publication_to_patch": {"available": false, "missing": ["start"]}}}