{
  "cveId": "CVE-2026-53276",
  "url": "https://patchblox.com/security/cve/CVE-2026-53276",
  "summary": "CVE-2026-53276 is fixed in linux on 1 platform by DEBIAN-CVE-2026-53276 (version 7.0.13-1), released June 28, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  Bluetooth: ISO: Fix a use-after-free of the hci_...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  Bluetooth: ISO: Fix a use-after-free of the hci_conn pointer  In iso_sock_rebind_bc(), the bis pointer is cached, then the socket lock is dropped: \tbis = iso_pi(sk)-\u003Econn-\u003Ehcon; \t/* Release the socket before lookups since that requires hci_dev_lock \t * which shall not be acquired while holding sock_lock for proper \t * ordering. \t */ \trelease_sock(sk); \thci_dev_lock(bis-\u003Ehdev);  During the unlocked window, could a concurrent close() destroy the connection and free the bis structure, causing hci_dev_lock(bis-\u003Ehdev) to access memory after it is freed, fix this by using the hdev reference which was safely acquired via iso_conn_get_hdev().",
  "published": "2026-06-25T09:16:45Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00165,
  "epssPercentile": 0.05766,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.0.13-1",
      "fix": "DEBIAN-CVE-2026-53276",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-53276",
      "released": "2026-06-28T17:47:07Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}