{
  "cveId": "CVE-2023-3866",
  "url": "https://patchblox.com/security/cve/CVE-2023-3866",
  "summary": "CVE-2023-3866 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-3866, released August 16, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  ksmbd: validate session id and tree id in the co...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ksmbd: validate session id and tree id in the compound request  This patch validate session id and tree id in compound request. If first operation in the compound is SMB2 ECHO request, ksmbd bypass session and tree validation. So work-\u003Esess and work-\u003Etcon could be NULL. If secound request in the compound access work-\u003Esess or tcon, It cause NULL pointer dereferecing error.",
  "published": "2025-08-16T14:15:27Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.12645,
  "epssPercentile": 0.96275,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.37-1",
      "fix": "DEBIAN-CVE-2023-3866",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-3866",
      "released": "2025-08-16T14:15:27Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.3.11-1",
      "fix": "DEBIAN-CVE-2023-3866",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-3866",
      "released": "2025-08-16T14:15:27Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.3.11-1",
      "fix": "DEBIAN-CVE-2023-3866",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-3866",
      "released": "2025-08-16T14:15:27Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}