{
    "id": "CVE-2018-4331",
    "published": "2019-04-03 18:29:08",
    "last_modified": "2026-06-17 01:58:48",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.0",
    "cvss_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-119",
    "description": "A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5.",
    "epss_score": "0.04398",
    "epss_percentile": "0.91070",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-08 18:17:20",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "apple",
            "product": "iphone_os"
        },
        {
            "vendor": "apple",
            "product": "mac_os_x"
        },
        {
            "vendor": "apple",
            "product": "tvos"
        },
        {
            "vendor": "apple",
            "product": "watchos"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://support.apple.com/kb/HT209106",
        "https://support.apple.com/kb/HT209107",
        "https://support.apple.com/kb/HT209108",
        "https://support.apple.com/kb/HT209139",
        "https://support.apple.com/kb/HT209193",
        "https://support.apple.com/kb/HT209106",
        "https://support.apple.com/kb/HT209107",
        "https://support.apple.com/kb/HT209108",
        "https://support.apple.com/kb/HT209139",
        "https://support.apple.com/kb/HT209193"
    ]
}