{
  "modified": "2025-08-09T19:01:28Z",
  "published": "2021-09-07T07:15:07Z",
  "id": "CVE-2021-34146",
  "details": "The Bluetooth Classic implementation in the Cypress CYW920735Q60EVB does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service and restart (crash) of the device by flooding it with LMP_AU_Rand packets after the paging procedure.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://dl.packetstormsecurity.net/papers/general/braktooth.pdf"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.cypress.com/documentation/datasheets/cyw20735b1-single-chip-bluetooth-transceiver-wireless-input-devices"
    },
    {
      "type": "ARTICLE",
      "url": "https://dl.packetstormsecurity.net/papers/general/braktooth.pdf"
    }
  ]
}