CVE-2026-99270

{
  "etk_id": "ETK-2026-3368",
  "cve_id": "CVE-2026-99270",
  "display_id": "CVE-2026-99270",
  "ghsa_id": "GHSA-7686-ccqp-qmhx",
  "euvd_id": "EUVD-2026-115811",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Use-after-free in Linux kernel TCP request socket handling",
  "summary": "Linux kernel TCP request-socket handling is affected when socket migration fails during hash insertion. A timer associated with a freed replacement request socket may subsequently access released memory; an attacker would need to be able to induce the affected TCP migration failure, and the resulting impact is not established by the evidence.",
  "mitigation": "Update the Linux kernel to version 4.2 or a release containing commit 97c8a3c1f73d828de43a5a88e8a9a143efb2b661.",
  "vendor": "Linux",
  "product": "Linux",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 83fccfc3940c4a2db90fd7e7079f5b465cd8c6af, < 97c8a3c1f73d828de43a5a88e8a9a143efb2b661",
        "d3a1196bfc462943694623412d8e03aaf172bdc1",
        ">= 4.1.11, < 4.2"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "97c8a3c1f73d828de43a5a88e8a9a143efb2b661",
        "4.2"
      ],
      "package_name": "Linux",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        "4.2"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "Linux",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": null,
  "cvss_src": null,
  "cvss_vector": null,
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 13.427507083333333,
  "t0_at": "2026-11-03T12:32:09.364000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-11-03T12:32:09.364000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-03T12:32:09.364000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-99270"
    }
  }
}