{
    "id": "CVE-2016-4448",
    "published": "2016-06-09 16:59:06",
    "last_modified": "2026-06-17 00:47:34",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-134",
    "description": "Format string vulnerability in libxml2 before 2.9.4 allows attackers to have unspecified impact via format string specifiers in unknown vectors.",
    "epss_score": "0.07039",
    "epss_percentile": "0.94005",
    "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": "icloud"
        },
        {
            "vendor": "apple",
            "product": "iphone_os"
        },
        {
            "vendor": "apple",
            "product": "itunes"
        },
        {
            "vendor": "apple",
            "product": "mac_os_x"
        },
        {
            "vendor": "apple",
            "product": "tvos"
        },
        {
            "vendor": "apple",
            "product": "watchos"
        },
        {
            "vendor": "hp",
            "product": "icewall_federation_agent"
        },
        {
            "vendor": "mcafee",
            "product": "web_gateway"
        },
        {
            "vendor": "microsoft",
            "product": "windows"
        },
        {
            "vendor": "oracle",
            "product": "linux"
        },
        {
            "vendor": "oracle",
            "product": "vm_server"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_desktop"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_aus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_eus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_tus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_workstation"
        },
        {
            "vendor": "slackware",
            "product": "slackware_linux"
        },
        {
            "vendor": "tenable",
            "product": "log_correlation_engine"
        },
        {
            "vendor": "xmlsoft",
            "product": "libxml2"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://lists.apple.com/archives/security-announce/2016/Jul/msg00000.html",
        "http://lists.apple.com/archives/security-announce/2016/Jul/msg00001.html",
        "http://lists.apple.com/archives/security-announce/2016/Jul/msg00002.html",
        "http://lists.apple.com/archives/security-announce/2016/Jul/msg00003.html",
        "http://lists.apple.com/archives/security-announce/2016/Jul/msg00005.html",
        "http://rhn.redhat.com/errata/RHSA-2016-2957.html",
        "http://www.openwall.com/lists/oss-security/2016/05/25/2",
        "http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html",
        "http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html",
        "http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html",
        "http://www.securityfocus.com/bid/90856",
        "http://www.securitytracker.com/id/1036348",
        "http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.404722",
        "http://xmlsoft.org/news.html",
        "https://access.redhat.com/errata/RHSA-2016:1292",
        "https://bugzilla.redhat.com/show_bug.cgi?id=1338700",
        "https://git.gnome.org/browse/libxml2/commit/?id=4472c3a5a5b516aaf59b89be602fbce52756c3e9",
        "https://git.gnome.org/browse/libxml2/commit/?id=502f6a6d08b08c04b3ddfb1cd21b2f699c1b7f5b",
        "https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05194709",
        "https://kc.mcafee.com/corporate/index?page=content&id=SB10170",
        "https://support.apple.com/HT206899",
        "https://support.apple.com/HT206901",
        "https://support.apple.com/HT206902",
        "https://support.apple.com/HT206903",
        "https://support.apple.com/HT206904"
    ]
}