{
  "id": "CVE-2020-9819",
  "url": "https://spydr.io/cve/CVE-2020-9819",
  "published": "2020-06-09T17:15:13.377Z",
  "modified": "2026-06-17T03:28:37.767Z",
  "score": 4.3,
  "severity": "medium",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
  "score_source": "NVD",
  "epss": 0.02178,
  "epss_percentile": 0.81774,
  "exploited": true,
  "kev": {
    "added": "2021-11-03",
    "due": "2022-05-03",
    "action": "Apply updates per vendor instructions.",
    "ransomware": "Unknown",
    "name": "Apple iOS, iPadOS, and watchOS Memory Corruption Vulnerability",
    "notes": "https://nvd.nist.gov/vuln/detail/CVE-2020-9819"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "Apple"
  ],
  "products": [
    "Apple iOS",
    "Apple iOS-1",
    "Apple watchOS",
    "Apple watchOS-1"
  ],
  "cwes": [
    "CWE-787"
  ],
  "description": "A memory consumption issue was addressed with improved memory handling. This issue is fixed in iOS 13.5 and iPadOS 13.5, iOS 12.4.7, watchOS 6.2.5, watchOS 5.3.7. Processing a maliciously crafted mail message may lead to heap corruption.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 4.3,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://support.apple.com/HT211168",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://support.apple.com/HT211169",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://support.apple.com/HT211175",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://support.apple.com/HT211176",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-9819",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2020-9819",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}