{
    "id": "CVE-2018-4443",
    "published": "2019-04-03 18:29:16",
    "last_modified": "2026-06-17 01:58:59",
    "cvss_score": "8.8",
    "cvss_severity": "HIGH",
    "cvss_version": "3.0",
    "cvss_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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 12.1.1, tvOS 12.1.1, watchOS 5.1.2, Safari 12.0.2, iTunes 12.9.2 for Windows, iCloud for Windows 7.9.",
    "epss_score": "0.05827",
    "epss_percentile": "0.92942",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-05 18:17:18",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "apple",
            "product": "icloud"
        },
        {
            "vendor": "apple",
            "product": "iphone_os"
        },
        {
            "vendor": "apple",
            "product": "itunes"
        },
        {
            "vendor": "apple",
            "product": "safari"
        },
        {
            "vendor": "apple",
            "product": "tvos"
        },
        {
            "vendor": "apple",
            "product": "watchos"
        },
        {
            "vendor": "microsoft",
            "product": "windows"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "46071",
            "title": "WebKit JSC - 'AbstractValue::set' Use-After-Free",
            "date": "2019-01-02",
            "url": "https://www.exploit-db.com/exploits/46071"
        }
    ],
    "refs_list": [
        "https://support.apple.com/kb/HT209340",
        "https://support.apple.com/kb/HT209342",
        "https://support.apple.com/kb/HT209343",
        "https://support.apple.com/kb/HT209344",
        "https://support.apple.com/kb/HT209345",
        "https://support.apple.com/kb/HT209346",
        "https://support.apple.com/kb/HT209340",
        "https://support.apple.com/kb/HT209342",
        "https://support.apple.com/kb/HT209343",
        "https://support.apple.com/kb/HT209344",
        "https://support.apple.com/kb/HT209345",
        "https://support.apple.com/kb/HT209346"
    ]
}