{
  "cveId": "CVE-2025-40046",
  "url": "https://patchblox.com/security/cve/CVE-2025-40046",
  "summary": "CVE-2025-40046 is fixed in linux on 1 platform by DEBIAN-CVE-2025-40046 (version 6.17.6-1), released October 28, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  io_uring/zcrx: fix overshooting recv limit  It\u0027s...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  io_uring/zcrx: fix overshooting recv limit  It\u0027s reported that sometimes a zcrx request can receive more than was requested. It\u0027s caused by io_zcrx_recv_skb() adjusting desc-\u003Ecount for all received buffers including frag lists, but then doing recursive calls to process frag list skbs, which leads to desc-\u003Ecount double accounting and underflow.",
  "published": "2025-10-28T12:15:38Z",
  "severity": "high",
  "cvss": 8.6,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
  "epss": 0.00349,
  "epssPercentile": 0.28682,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.17.6-1",
      "fix": "DEBIAN-CVE-2025-40046",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-40046",
      "released": "2025-10-28T12:15:38Z"
    }
  ],
  "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"
  }
}