{
  "cveId": "CVE-2021-22883",
  "url": "https://patchblox.com/security/cve/CVE-2021-22883",
  "summary": "CVE-2021-22883 is fixed in 12 products on 2 platforms, first by Node.js 10 10.24.0, released February 23, 2021. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Node.js 14 and 3 others: Denial of Service (CWE-400)",
  "description": "Node.js before 10.24.0, 12.21.0, 14.16.0, and 15.10.0 is vulnerable to a denial of service attack when too many connection attempts with an \u0027unknownProtocol\u0027 are established. This leads to a leak of file descriptors. If a file descriptor limit is configured on the system, then the server is unable to accept new connections and prevent the process also from opening, e.g. a file. If no file descriptor limit is configured, then this lead to an excessive memory usage and cause the system to run out of memory.",
  "published": "2021-03-03T10:15:00Z",
  "severity": "Important",
  "cvss": 7.5,
  "cwe": "CWE-400: Denial of Service (CWE-400)",
  "epss": 0.77385,
  "epssPercentile": 0.9956,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://nvd.nist.gov/vuln/detail/CVE-2021-22883",
  "fixes": [
    {
      "platform": "windows-app",
      "product": "Node.js 10",
      "fixedVersion": "10.24.0",
      "fix": "Node.js 10 10.24.0",
      "url": "https://patchblox.com/security/fix/windows-app/openjs.nodejs.10-10.24.0",
      "released": "2021-02-23T00:00:00Z"
    },
    {
      "platform": "windows-app",
      "product": "Node.js 12",
      "fixedVersion": "12.21.0",
      "fix": "Node.js 12 12.21.0",
      "url": "https://patchblox.com/security/fix/windows-app/openjs.nodejs.12-12.21.0",
      "released": "2021-02-23T00:00:00Z"
    },
    {
      "platform": "windows-app",
      "product": "Node.js 14",
      "fixedVersion": "14.16.0",
      "fix": "Node.js 14 14.16.0",
      "url": "https://patchblox.com/security/fix/windows-app/openjs.nodejs.14-14.16.0",
      "released": "2021-02-23T00:00:00Z"
    },
    {
      "platform": "windows-app",
      "product": "Node.js 15",
      "fixedVersion": "15.10.0",
      "fix": "Node.js 15 15.10.0",
      "url": "https://patchblox.com/security/fix/windows-app/openjs.nodejs.15-15.10.0",
      "released": "2021-02-23T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libnode64",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "10.19.0~dfsg-3ubuntu1.2",
      "fix": "libnode64 10.19.0~dfsg-3ubuntu1.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libnode64-10.19.0-dfsg-3ubuntu1.2",
      "released": "2021-03-03T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs",
      "release": "RHEL 8",
      "fixedVersion": "1:14.16.0-2.module\u002Bel8.3.0\u002B10180\u002Bb92e1eb6",
      "fix": "RHSA-2021:0744",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-0744",
      "released": "2021-03-08T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "10.19.0~dfsg-3ubuntu1.2",
      "fix": "nodejs 10.19.0~dfsg-3ubuntu1.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-nodejs-10.19.0-dfsg-3ubuntu1.2",
      "released": "2021-03-03T10:15:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs",
      "release": "ol 8",
      "fixedVersion": "1:12.21.0-1.module\u002Bel8.3.0\u002B9672\u002Bc7b0544d",
      "fix": "ELSA-2021-0734",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-0734",
      "released": "2021-03-05T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-devel",
      "release": "RHEL 8",
      "fixedVersion": "1:14.16.0-2.module\u002Bel8.3.0\u002B10180\u002Bb92e1eb6",
      "fix": "RHSA-2021:0744",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-0744",
      "released": "2021-03-08T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-devel",
      "release": "ol 8",
      "fixedVersion": "1:12.21.0-1.module\u002Bel8.3.0\u002B9672\u002Bc7b0544d",
      "fix": "ELSA-2021-0734",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-0734",
      "released": "2021-03-05T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-docs",
      "release": "RHEL 8",
      "fixedVersion": "1:14.16.0-2.module\u002Bel8.3.0\u002B10180\u002Bb92e1eb6",
      "fix": "RHSA-2021:0744",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-0744",
      "released": "2021-03-08T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-docs",
      "release": "ol 8",
      "fixedVersion": "1:12.21.0-1.module\u002Bel8.3.0\u002B9672\u002Bc7b0544d",
      "fix": "ELSA-2021-0734",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-0734",
      "released": "2021-03-05T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-full-i18n",
      "release": "RHEL 8",
      "fixedVersion": "1:14.16.0-2.module\u002Bel8.3.0\u002B10180\u002Bb92e1eb6",
      "fix": "RHSA-2021:0744",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-0744",
      "released": "2021-03-08T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-full-i18n",
      "release": "ol 8",
      "fixedVersion": "1:12.21.0-1.module\u002Bel8.3.0\u002B9672\u002Bc7b0544d",
      "fix": "ELSA-2021-0734",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-0734",
      "released": "2021-03-05T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-nodemon",
      "release": "RHEL 8",
      "fixedVersion": "0:2.0.3-1.module\u002Bel8.3.0\u002B6519\u002B9f98ed83",
      "fix": "RHSA-2021:0744",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-0744",
      "released": "2021-03-08T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-nodemon",
      "release": "ol 8",
      "fixedVersion": "0:2.0.3-1.module\u002Bel8.3.0\u002B9643\u002B8c99e187",
      "fix": "ELSA-2021-0734",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-0734",
      "released": "2021-03-05T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-packaging",
      "release": "RHEL 8",
      "fixedVersion": "0:23-3.module\u002Bel8.3.0\u002B6519\u002B9f98ed83",
      "fix": "RHSA-2021:0744",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-0744",
      "released": "2021-03-08T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nodejs-packaging",
      "release": "ol 8",
      "fixedVersion": "0:17-3.module\u002Bel8.1.0\u002B5393\u002Baaf413e3",
      "fix": "ELSA-2021-0734",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-0734",
      "released": "2021-03-05T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "npm",
      "release": "RHEL 8",
      "fixedVersion": "1:6.14.11-1.14.16.0.2.module\u002Bel8.3.0\u002B10180\u002Bb92e1eb6",
      "fix": "RHSA-2021:0744",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-0744",
      "released": "2021-03-08T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "npm",
      "release": "ol 8",
      "fixedVersion": "1:6.14.11-1.12.21.0.1.module\u002Bel8.3.0\u002B9672\u002Bc7b0544d",
      "fix": "ELSA-2021-0734",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-0734",
      "released": "2021-03-05T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}