{
  "cveId": "CVE-2025-40084",
  "url": "https://patchblox.com/security/cve/CVE-2025-40084",
  "summary": "CVE-2025-40084 is fixed in linux on 1 platform, first by DEBIAN-CVE-2025-40084, released October 29, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "ksmbd: transport_ipc: validate payload size before reading handle",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ksmbd: transport_ipc: validate payload size before reading handle  handle_response() dereferences the payload as a 4-byte handle without verifying that the declared payload size is at least 4 bytes. A malformed or truncated message from ksmbd.mountd can lead to a 4-byte read past the declared payload size. Validate the size before dereferencing.  This is a minimal fix to guard the initial handle read.",
  "published": "2025-10-29T14:15:55Z",
  "severity": "Moderate",
  "cvss": 7.1,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
  "epss": 0.0015,
  "epssPercentile": 0.04164,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40084",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.158-1",
      "fix": "DEBIAN-CVE-2025-40084",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-40084",
      "released": "2025-10-29T14:15:55Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.57-1",
      "fix": "DEBIAN-CVE-2025-40084",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-40084",
      "released": "2025-10-29T14:15:55Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.17.6-1",
      "fix": "DEBIAN-CVE-2025-40084",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-40084",
      "released": "2025-10-29T14:15:55Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}