{
  "id": "cve-2021-1871",
  "cveID": "CVE-2021-1871",
  "vendor": "Apple",
  "product": "iOS, iPadOS, and macOS",
  "vulnerabilityName": "Apple iOS, iPadOS, and macOS WebKit Remote Code Execution Vulnerability",
  "shortDescription": "Apple iOS, iPadOS, and macOS WebKit contain an unspecified logic vulnerability that allows a remote attacker to execute code. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.",
  "requiredAction": "Apply updates per vendor instructions.",
  "dateAdded": "2021-11-03",
  "dueDate": "2021-11-17",
  "knownRansomware": false,
  "cwes": [
    "CWE-1173"
  ],
  "notes": "https://nvd.nist.gov/vuln/detail/CVE-2021-1871",
  "sources": [
    {
      "label": "NVD",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-1871"
    },
    {
      "label": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
    },
    {
      "label": "nvd.nist.gov",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-1871"
    }
  ],
  "cvss": {
    "score": 9.8,
    "severity": "CRITICAL",
    "version": "3.1",
    "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  },
  "epss": {
    "score": 0.07002,
    "percentile": 0.93765
  },
  "timeline": [
    {
      "date": "2021-11-03",
      "event": "Added to the CISA KEV catalog"
    },
    {
      "date": "2021-11-17",
      "event": "CISA remediation due date (BOD 22-01)"
    }
  ],
  "status": "past due"
}