{
    "id": "CVE-2017-2523",
    "published": "2017-05-22 05:29:01",
    "last_modified": "2026-06-17 01:16:22",
    "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": "An issue was discovered in certain Apple products. iOS before 10.3.2 is affected. macOS before 10.12.5 is affected. tvOS before 10.2.1 is affected. watchOS before 3.2.2 is affected. The issue involves the \"Foundation\" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via crafted data.",
    "epss_score": "0.11484",
    "epss_percentile": "0.95880",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-27 18:17:18",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "apple",
            "product": "iphone_os"
        },
        {
            "vendor": "apple",
            "product": "mac_os_x"
        },
        {
            "vendor": "apple",
            "product": "tvos"
        },
        {
            "vendor": "apple",
            "product": "watchos"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "42050",
            "title": "Apple macOS/iOS - NSUnarchiver Heap Corruption Due to Lack of Bounds Checking in [NSBuiltinCharacterSet initWithCoder:]",
            "date": "2017-05-23",
            "url": "https://www.exploit-db.com/exploits/42050"
        }
    ],
    "refs_list": [
        "http://www.securityfocus.com/bid/98584",
        "https://support.apple.com/HT207797",
        "https://support.apple.com/HT207798",
        "https://support.apple.com/HT207800",
        "https://support.apple.com/HT207801",
        "https://www.exploit-db.com/exploits/42050/",
        "http://www.securityfocus.com/bid/98584",
        "https://support.apple.com/HT207797",
        "https://support.apple.com/HT207798",
        "https://support.apple.com/HT207800",
        "https://support.apple.com/HT207801",
        "https://www.exploit-db.com/exploits/42050/"
    ]
}