{
  "cveId": "CVE-2023-53269",
  "url": "https://patchblox.com/security/cve/CVE-2023-53269",
  "summary": "CVE-2023-53269 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-53269, released September 16, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  block: ublk: make sure that block size is set co...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  block: ublk: make sure that block size is set correctly  block size is one very key setting for block layer, and bad block size could panic kernel easily.  Make sure that block size is set correctly.  Meantime if ublk_validate_params() fails, clear ub-\u003Eparams so that disk is prevented from being added.",
  "published": "2025-09-16T08:15:35Z",
  "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": 0.00157,
  "epssPercentile": 0.04903,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.25-1",
      "fix": "DEBIAN-CVE-2023-53269",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53269",
      "released": "2025-09-16T08:15:35Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.1.25-1",
      "fix": "DEBIAN-CVE-2023-53269",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53269",
      "released": "2025-09-16T08:15:35Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.1.25-1",
      "fix": "DEBIAN-CVE-2023-53269",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-53269",
      "released": "2025-09-16T08:15:35Z"
    }
  ],
  "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"
  }
}