{
  "cveId": "CVE-2026-63864",
  "url": "https://patchblox.com/security/cve/CVE-2026-63864",
  "summary": "CVE-2026-63864 is fixed in linux on 1 platform by DEBIAN-CVE-2026-63864 (version 7.0.10-1), released July 20, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  bpf: Propagate error from visit_tailcall_insn  C...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  bpf: Propagate error from visit_tailcall_insn  Commit e40f5a6bf88a (\u0022bpf: correct stack liveness for tail calls\u0022) added visit_tailcall_insn() but did not check its return value.",
  "published": "2026-07-19T15:16:53Z",
  "severity": "high",
  "cvss": 8.4,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.0018,
  "epssPercentile": 0.07576,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.0.10-1",
      "fix": "DEBIAN-CVE-2026-63864",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-63864",
      "released": "2026-07-20T12:58:36Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T19:38:12Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}