{
  "cveId": "CVE-2026-63954",
  "url": "https://patchblox.com/security/cve/CVE-2026-63954",
  "summary": "CVE-2026-63954 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-63954, released July 20, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "hpfs: fix a crash if hpfs_map_dnode_bitmap fails",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  hpfs: fix a crash if hpfs_map_dnode_bitmap fails  If hpfs_map_dnode_bitmap fails, the code would call hpfs_brelse4 on uninitialized quad buffer head, causing a crash.",
  "published": "2026-07-19T16:17:14Z",
  "severity": "Moderate",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00169,
  "epssPercentile": 0.06284,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-63954",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.176-1",
      "fix": "DEBIAN-CVE-2026-63954",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-63954",
      "released": "2026-07-20T12:58:36Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.94-1",
      "fix": "DEBIAN-CVE-2026-63954",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-63954",
      "released": "2026-07-20T12:58:36Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.0.12-1",
      "fix": "DEBIAN-CVE-2026-63954",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-63954",
      "released": "2026-07-20T12:58:36Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-11T01:20:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}