{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "2.5.2"
              },
              {
                "introduced": "2.2.0"
              },
              {
                "last_affected": "3.1.0"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "8b899c12fb5044a6a51b92501bfcdf86a3d98dd8"
            },
            {
              "introduced": "de3058fc43f8a3298f472dfbea2b79854c3a08aa"
            },
            {
              "last_affected": "8ae300d4760b422cef4ee15cbabfb39dcb469216"
            }
          ],
          "repo": "https://github.com/esp8266/arduino",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "The client 802.11 mac implementation in Espressif ESP8266_NONOS_SDK 2.2.0 through 3.1.0 does not validate correctly the RSN AuthKey suite list count in beacon frames, probe responses, and association responses, which allows attackers in radio range to cause a denial of service (crash) via a crafted message.",
  "id": "CVE-2019-12588",
  "modified": "2026-03-15T21:47:25.820754189Z",
  "published": "2019-09-04T12:15:11.107Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/espressif"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/Matheus-Garbelini/esp32_esp8266_attacks"
    },
    {
      "type": "EVIDENCE",
      "url": "https://matheus-garbelini.github.io/home/post/esp8266-beacon-frame-crash/"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}