{
    "id": "CVE-2016-9843",
    "published": "2017-05-23 04:29:01",
    "last_modified": "2026-06-17 00:56:39",
    "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": null,
    "description": "The crc32_big function in crc32.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving big-endian CRC calculation.",
    "epss_score": "0.05766",
    "epss_percentile": "0.92873",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-06 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": "canonical",
            "product": "ubuntu_linux"
        },
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "mariadb",
            "product": "mariadb"
        },
        {
            "vendor": "netapp",
            "product": "active_iq_unified_manager"
        },
        {
            "vendor": "netapp",
            "product": "oncommand_insight"
        },
        {
            "vendor": "netapp",
            "product": "oncommand_workflow_automation"
        },
        {
            "vendor": "netapp",
            "product": "snapcenter"
        },
        {
            "vendor": "nodejs",
            "product": "node.js"
        },
        {
            "vendor": "opensuse",
            "product": "leap"
        },
        {
            "vendor": "opensuse",
            "product": "opensuse"
        },
        {
            "vendor": "oracle",
            "product": "database_server"
        },
        {
            "vendor": "oracle",
            "product": "jdk"
        },
        {
            "vendor": "oracle",
            "product": "jre"
        },
        {
            "vendor": "oracle",
            "product": "mysql"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_desktop"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_eus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_workstation"
        },
        {
            "vendor": "redhat",
            "product": "satellite"
        },
        {
            "vendor": "zlib",
            "product": "zlib"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://lists.opensuse.org/opensuse-updates/2016-12/msg00127.html",
        "http://lists.opensuse.org/opensuse-updates/2017-01/msg00050.html",
        "http://lists.opensuse.org/opensuse-updates/2017-01/msg00053.html",
        "http://www.openwall.com/lists/oss-security/2016/12/05/21",
        "http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html",
        "http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html",
        "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html",
        "http://www.securityfocus.com/bid/95131",
        "http://www.securitytracker.com/id/1039427",
        "http://www.securitytracker.com/id/1041888",
        "https://access.redhat.com/errata/RHSA-2017:1220",
        "https://access.redhat.com/errata/RHSA-2017:1221",
        "https://access.redhat.com/errata/RHSA-2017:1222",
        "https://access.redhat.com/errata/RHSA-2017:2999",
        "https://access.redhat.com/errata/RHSA-2017:3046",
        "https://access.redhat.com/errata/RHSA-2017:3047",
        "https://access.redhat.com/errata/RHSA-2017:3453",
        "https://bugzilla.redhat.com/show_bug.cgi?id=1402351",
        "https://github.com/madler/zlib/commit/d1d577490c15a0c6862473d7576352a9f18ef811",
        "https://lists.debian.org/debian-lts-announce/2019/03/msg00027.html",
        "https://lists.debian.org/debian-lts-announce/2020/01/msg00030.html",
        "https://security.gentoo.org/glsa/201701-56",
        "https://security.gentoo.org/glsa/202007-54",
        "https://security.netapp.com/advisory/ntap-20181018-0002/",
        "https://support.apple.com/HT208112"
    ]
}