{
  "cveId": "CVE-2026-43021",
  "url": "https://patchblox.com/security/cve/CVE-2026-43021",
  "summary": "CVE-2026-43021 is fixed in linux on 1 platform by DEBIAN-CVE-2026-43021 (version 6.19.12-1), released May 15, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "Bluetooth: hci_sync: fix leaks when hci_cmd_sync_queue_once fails",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  Bluetooth: hci_sync: fix leaks when hci_cmd_sync_queue_once fails  When hci_cmd_sync_queue_once() returns with error, the destroy callback will not be called.  Fix leaking references / memory on these failures.",
  "published": "2026-05-01T15:16:46Z",
  "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": 0.00107,
  "epssPercentile": 0.01157,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-43021",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.19.12-1",
      "fix": "DEBIAN-CVE-2026-43021",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-43021",
      "released": "2026-05-15T16:01:09Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T13:31:49Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}