{
    "id": "CVE-2016-5180",
    "published": "2016-10-03 15:59:03",
    "last_modified": "2026-06-17 00:48:55",
    "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-787",
    "description": "Heap-based buffer overflow in the ares_create_query function in c-ares 1.x before 1.12.0 allows remote attackers to cause a denial of service (out-of-bounds write) or possibly execute arbitrary code via a hostname with an escaped trailing dot.",
    "epss_score": "0.08583",
    "epss_percentile": "0.94928",
    "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": "c-ares",
            "product": "c-ares"
        },
        {
            "vendor": "c-ares_project",
            "product": "c-ares"
        },
        {
            "vendor": "canonical",
            "product": "ubuntu_linux"
        },
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "nodejs",
            "product": "node.js"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://rhn.redhat.com/errata/RHSA-2017-0002.html",
        "http://www.debian.org/security/2016/dsa-3682",
        "http://www.securityfocus.com/bid/93243",
        "http://www.ubuntu.com/usn/USN-3143-1",
        "https://c-ares.haxx.se/CVE-2016-5180.patch",
        "https://c-ares.haxx.se/adv_20160929.html",
        "https://googlechromereleases.blogspot.in/2016/09/stable-channel-updates-for-chrome-os.html",
        "https://security.gentoo.org/glsa/201701-28",
        "https://source.android.com/security/bulletin/2017-01-01.html",
        "http://rhn.redhat.com/errata/RHSA-2017-0002.html",
        "http://www.debian.org/security/2016/dsa-3682",
        "http://www.securityfocus.com/bid/93243",
        "http://www.ubuntu.com/usn/USN-3143-1",
        "https://c-ares.haxx.se/CVE-2016-5180.patch",
        "https://c-ares.haxx.se/adv_20160929.html",
        "https://googlechromereleases.blogspot.in/2016/09/stable-channel-updates-for-chrome-os.html",
        "https://security.gentoo.org/glsa/201701-28",
        "https://source.android.com/security/bulletin/2017-01-01.html"
    ]
}