{
    "id": "CVE-2017-18046",
    "published": "2018-01-21 22:29:00",
    "last_modified": "2026-06-17 01:12:06",
    "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": "Buffer overflow on Dasan GPON ONT WiFi Router H640X 12.02-01121 2.77p1-1124 and 3.03p2-1146 devices allows remote attackers to execute arbitrary code via a long POST request to the login_action function in /cgi-bin/login_action.cgi (aka cgipage.cgi).",
    "epss_score": "0.05045",
    "epss_percentile": "0.92071",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-07 18:17:16",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "dasannetworks",
            "product": "h640x"
        },
        {
            "vendor": "dasannetworks",
            "product": "h640x_firmware"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://blogs.securiteam.com/index.php/archives/3552",
        "https://pastebin.com/Yxd9S46A",
        "https://twitter.com/ankit_anubhav/status/982261670394249216",
        "https://blogs.securiteam.com/index.php/archives/3552",
        "https://pastebin.com/Yxd9S46A",
        "https://twitter.com/ankit_anubhav/status/982261670394249216"
    ]
}