{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "4.0.0"
              },
              {
                "last_affected": "4.2"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "ee899cb2aac50349bb83524910f4f34920579386"
            }
          ],
          "repo": "https://github.com/espressif/esp-idf",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "The Bluetooth Low Energy (BLE) controller implementation in Espressif ESP-IDF 4.0 through 4.2 (for ESP32 devices) returns the wrong number of completed BLE packets and triggers a reachable assertion on the host stack when receiving a packet with an MIC failure. An attacker within radio range can silently trigger the assertion (which disables the target's BLE stack) by sending a crafted sequence of BLE packets.",
  "id": "CVE-2020-13595",
  "modified": "2026-04-01T23:10:29.772772724Z",
  "published": "2020-08-31T15:15:10.680Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://asset-group.github.io/cves.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://asset-group.github.io/disclosures/sweyntooth/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/espressif/esp32-bt-lib"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}