{
  "cveId": "CVE-2021-1857",
  "url": "https://patchblox.com/security/cve/CVE-2021-1857",
  "summary": "CVE-2021-1857 is fixed in iTunes on 1 platform by iTunes 12.11.4.15 (version 12.11.4.15), released August 4, 2021. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "iTunes: A memory initialization issue was addressed with improved memory handling.",
  "description": "A memory initialization issue was addressed with improved memory handling. This issue is fixed in iTunes 12.11.3 for Windows, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iCloud for Windows 12.3, macOS Big Sur 11.3, watchOS 7.4, tvOS 14.5, iOS 14.5 and iPadOS 14.5. Processing maliciously crafted web content may disclose sensitive user information.",
  "published": "2021-09-08T15:15:11Z",
  "severity": "",
  "cvss": 6.5,
  "epss": 0.01224,
  "epssPercentile": 0.68966,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://nvd.nist.gov/vuln/detail/CVE-2021-1857",
  "fixes": [
    {
      "platform": "windows-app",
      "product": "iTunes",
      "fixedVersion": "12.11.4.15",
      "fix": "iTunes 12.11.4.15",
      "url": "https://patchblox.com/security/fix/windows-app/apple.itunes-12.11.4.15",
      "released": "2021-08-04T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}