{
    "id": "CVE-2016-4658",
    "published": "2016-09-25 10:59:02",
    "last_modified": "2026-06-17 00:47:58",
    "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": "xpointer.c in libxml2 before 2.9.5 (as used in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3, and other products) does not forbid namespace nodes in XPointer ranges, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and memory corruption) via a crafted XML document.",
    "epss_score": "0.08559",
    "epss_percentile": "0.94917",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-05 18:17:14",
    "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"
        },
        {
            "vendor": "xmlsoft",
            "product": "libxml2"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html",
        "http://lists.apple.com/archives/security-announce/2016/Sep/msg00008.html",
        "http://lists.apple.com/archives/security-announce/2016/Sep/msg00010.html",
        "http://lists.apple.com/archives/security-announce/2016/Sep/msg00011.html",
        "http://www.securityfocus.com/bid/93054",
        "http://www.securitytracker.com/id/1036858",
        "http://www.securitytracker.com/id/1038623",
        "https://git.gnome.org/browse/libxml2/commit/?id=c1d1f7121194036608bf555f08d3062a36fd344b",
        "https://security.gentoo.org/glsa/201701-37",
        "https://support.apple.com/HT207141",
        "https://support.apple.com/HT207142",
        "https://support.apple.com/HT207143",
        "https://support.apple.com/HT207170",
        "http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html",
        "http://lists.apple.com/archives/security-announce/2016/Sep/msg00008.html",
        "http://lists.apple.com/archives/security-announce/2016/Sep/msg00010.html",
        "http://lists.apple.com/archives/security-announce/2016/Sep/msg00011.html",
        "http://www.securityfocus.com/bid/93054",
        "http://www.securitytracker.com/id/1036858",
        "http://www.securitytracker.com/id/1038623",
        "https://git.gnome.org/browse/libxml2/commit/?id=c1d1f7121194036608bf555f08d3062a36fd344b",
        "https://security.gentoo.org/glsa/201701-37",
        "https://support.apple.com/HT207141",
        "https://support.apple.com/HT207142",
        "https://support.apple.com/HT207143"
    ]
}