{
  "id": "CVE-2026-73214",
  "url": "https://spydr.io/cve/CVE-2026-73214",
  "published": "2026-08-11T18:18:26.773Z",
  "modified": "2026-09-09T20:55:04.493Z",
  "score": 8.2,
  "severity": "high",
  "cvss_version": "4.0",
  "vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
  "score_source": "github.com",
  "epss": 0.00577,
  "epss_percentile": 0.45593,
  "exploited": false,
  "kev": null,
  "ssvc_exploitation": "none",
  "vendors": [
    "coturn"
  ],
  "products": [
    "coturn"
  ],
  "cwes": [
    "CWE-400",
    "CWE-770"
  ],
  "description": "Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.16.0, dtls_server_input_handler() and create_new_connected_udp_socket() in src/apps/relay/dtls_listener.c retain OpenSSL dtls1_reassemble_fragment() state for a 35-byte fragmented ClientHello declaring a 650,000-byte handshake before cookie validation, allowing an unauthenticated remote sender using fresh UDP tuples to exhaust memory without TURN credentials, a completed handshake, a valid cookie, or source spoofing. This issue is fixed in version 4.16.0.",
  "status": "Deferred",
  "score_type": "Secondary",
  "scores": {
    "cvss_v40": 8.2,
    "cvss_v31": null,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://github.com/coturn/coturn/commit/37e13d1d60af8f1422c01b5e9f1c6bc355d03b85",
      "tags": []
    },
    {
      "url": "https://github.com/coturn/coturn/commit/beb4de9dcb6a475129595b943c9a34264420df09",
      "tags": []
    },
    {
      "url": "https://github.com/coturn/coturn/pull/2003",
      "tags": []
    },
    {
      "url": "https://github.com/coturn/coturn/pull/2012",
      "tags": []
    },
    {
      "url": "https://github.com/coturn/coturn/releases/tag/4.16.0",
      "tags": []
    },
    {
      "url": "https://github.com/coturn/coturn/security/advisories/GHSA-5x2p-4vqj-f6m4",
      "tags": []
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-73214",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}