{
    "id": "CVE-2018-12327",
    "published": "2018-06-20 14:29:00",
    "last_modified": "2026-06-17 01:37:34",
    "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-787",
    "description": "Stack-based buffer overflow in ntpq and ntpdc of NTP version 4.2.8p11 allows an attacker to achieve code execution or escalate to higher privileges via a long string as the argument for an IPv4 or IPv6 command-line parameter. NOTE: It is unclear whether there are any common situations in which ntpq or ntpdc is used with a command line from an untrusted source.",
    "epss_score": "0.28018",
    "epss_percentile": "0.98045",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-27 18:17:20",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "ntp",
            "product": "ntp"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "44909",
            "title": "ntp 4.2.8p11 - Local Buffer Overflow (PoC)",
            "date": "2018-06-20",
            "url": "https://www.exploit-db.com/exploits/44909"
        }
    ],
    "refs_list": [
        "http://www.securityfocus.com/bid/104517",
        "https://access.redhat.com/errata/RHSA-2018:3853",
        "https://access.redhat.com/errata/RHSA-2018:3854",
        "https://access.redhat.com/errata/RHSA-2019:2077",
        "https://gist.github.com/fakhrizulkifli/9b58ed8e0354e8deee50b0eebd1c011f",
        "https://security.gentoo.org/glsa/201903-15",
        "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us",
        "https://usn.ubuntu.com/4229-1/",
        "https://www.exploit-db.com/exploits/44909/",
        "http://www.securityfocus.com/bid/104517",
        "https://access.redhat.com/errata/RHSA-2018:3853",
        "https://access.redhat.com/errata/RHSA-2018:3854",
        "https://access.redhat.com/errata/RHSA-2019:2077",
        "https://gist.github.com/fakhrizulkifli/9b58ed8e0354e8deee50b0eebd1c011f",
        "https://security.gentoo.org/glsa/201903-15",
        "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us",
        "https://usn.ubuntu.com/4229-1/",
        "https://www.exploit-db.com/exploits/44909/"
    ]
}