{
  "cveId": "CVE-2018-25021",
  "url": "https://patchblox.com/security/cve/CVE-2018-25021",
  "summary": "CVE-2018-25021 is fixed in libtoxcore on 1 platform, first by DEBIAN-CVE-2018-25021, released December 13, 2021. It is not reported as exploited. Patch Radar priority: High.",
  "title": "libtoxcore: The TCP Server module in toxcore before 0.2.8 doesn\u0027t free the TCP priority queue under certain conditions, which all...",
  "description": "The TCP Server module in toxcore before 0.2.8 doesn\u0027t free the TCP priority queue under certain conditions, which allows a remote attacker to exhaust the system\u0027s memory, causing a denial of service (DoS).",
  "published": "2021-12-13T01:15:07Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.02342,
  "epssPercentile": 0.83736,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libtoxcore",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "0.2.8-1",
      "fix": "DEBIAN-CVE-2018-25021",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2018-25021",
      "released": "2021-12-13T01:15:07Z"
    },
    {
      "platform": "linux",
      "product": "libtoxcore",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "0.2.8-1",
      "fix": "DEBIAN-CVE-2018-25021",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2018-25021",
      "released": "2021-12-13T01:15:07Z"
    },
    {
      "platform": "linux",
      "product": "libtoxcore",
      "release": "Debian 14",
      "fixedVersion": "0.2.8-1",
      "fix": "DEBIAN-CVE-2018-25021",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2018-25021",
      "released": "2021-12-13T01:15:07Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}