{
  "cveId": "CVE-2020-8252",
  "url": "https://patchblox.com/security/cve/CVE-2020-8252",
  "summary": "CVE-2020-8252 is fixed in 10 products on 2 platforms, first by Node.js 14 14.9.0, released August 27, 2020. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Node.js 14 and 1 other: Classic Buffer Overflow (CWE-120)",
  "description": "The implementation of realpath in libuv \u003C 10.22.1, \u003C 12.18.4, and \u003C 14.9.0 used within Node.js incorrectly determined the buffer size which can result in a buffer overflow if the resolved path is longer than 256 bytes.",
  "published": "2020-09-18T14:15:00Z",
  "severity": "Moderate",
  "cvss": 7.8,
  "cwe": "CWE-120: Classic Buffer Overflow (CWE-120)",
  "epss": 0.00714,
  "epssPercentile": 0.53945,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://nvd.nist.gov/vuln/detail/CVE-2020-8252",
  "fixes": [
    {
      "platform": "windows-app",
      "product": "Node.js 10",
      "fixedVersion": "10.23.2",
      "fix": "Node.js 10 10.23.2",
      "url": "https://patchblox.com/security/fix/windows-app/openjs.nodejs.10-10.23.2",
      "released": "2021-01-26T00:00:00Z"
    },
    {
      "platform": "windows-app",
      "product": "Node.js 14",
      "fixedVersion": "14.9.0",
      "fix": "Node.js 14 14.9.0",
      "url": "https://patchblox.com/security/fix/windows-app/openjs.nodejs.14-14.9.0",
      "released": "2020-08-27T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libuv1",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.34.2-1ubuntu1.1",
      "fix": "libuv1 1.34.2-1ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libuv1-1.34.2-1ubuntu1.1",
      "released": "2020-09-18T14:15:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs",
      "release": "RHEL 8",
      "fixedVersion": "1:10.23.1-1.module\u002Bel8.3.0\u002B9502\u002B012d8a97",
      "fix": "RHSA-2021:0548",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-0548",
      "released": "2021-02-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs",
      "release": "ol 8",
      "fixedVersion": "1:12.18.4-2.module\u002Bel8.2.0\u002B7806\u002B0b44ae23",
      "fix": "ELSA-2020-4272",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-4272",
      "released": "2020-10-20T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-devel",
      "release": "RHEL 8",
      "fixedVersion": "1:10.23.1-1.module\u002Bel8.3.0\u002B9502\u002B012d8a97",
      "fix": "RHSA-2021:0548",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-0548",
      "released": "2021-02-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-devel",
      "release": "ol 8",
      "fixedVersion": "1:12.18.4-2.module\u002Bel8.2.0\u002B7806\u002B0b44ae23",
      "fix": "ELSA-2020-4272",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-4272",
      "released": "2020-10-20T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-docs",
      "release": "RHEL 8",
      "fixedVersion": "1:10.23.1-1.module\u002Bel8.3.0\u002B9502\u002B012d8a97",
      "fix": "RHSA-2021:0548",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-0548",
      "released": "2021-02-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-docs",
      "release": "ol 8",
      "fixedVersion": "1:12.18.4-2.module\u002Bel8.2.0\u002B7806\u002B0b44ae23",
      "fix": "ELSA-2020-4272",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-4272",
      "released": "2020-10-20T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-full-i18n",
      "release": "RHEL 8",
      "fixedVersion": "1:10.23.1-1.module\u002Bel8.3.0\u002B9502\u002B012d8a97",
      "fix": "RHSA-2021:0548",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-0548",
      "released": "2021-02-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-full-i18n",
      "release": "ol 8",
      "fixedVersion": "1:12.18.4-2.module\u002Bel8.2.0\u002B7806\u002B0b44ae23",
      "fix": "ELSA-2020-4272",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-4272",
      "released": "2020-10-20T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-nodemon",
      "release": "RHEL 8",
      "fixedVersion": "0:1.18.3-1.module\u002Bel8\u002B2632\u002B6c5111ed",
      "fix": "RHSA-2021:0548",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-0548",
      "released": "2021-02-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-nodemon",
      "release": "ol 8",
      "fixedVersion": "0:1.18.3-1.module\u002Bel8.1.0\u002B5393\u002Baaf413e3",
      "fix": "ELSA-2020-4272",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-4272",
      "released": "2020-10-20T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-packaging",
      "release": "RHEL 8",
      "fixedVersion": "0:17-3.module\u002Bel8\u002B2873\u002Baa7dfd9a",
      "fix": "RHSA-2021:0548",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-0548",
      "released": "2021-02-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-packaging",
      "release": "ol 8",
      "fixedVersion": "0:17-3.module\u002Bel8.1.0\u002B5393\u002Baaf413e3",
      "fix": "ELSA-2020-4272",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-4272",
      "released": "2020-10-20T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "npm",
      "release": "RHEL 8",
      "fixedVersion": "1:6.14.10-1.10.23.1.1.module\u002Bel8.3.0\u002B9502\u002B012d8a97",
      "fix": "RHSA-2021:0548",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-0548",
      "released": "2021-02-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "npm",
      "release": "ol 8",
      "fixedVersion": "1:6.14.6-1.12.18.4.2.module\u002Bel8.2.0\u002B7806\u002B0b44ae23",
      "fix": "ELSA-2020-4272",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-4272",
      "released": "2020-10-20T00:00:00Z"
    }
  ],
  "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"
  }
}