{
    "id": "CVE-2017-9521",
    "published": "2017-07-31 03:29:00",
    "last_modified": "2026-06-17 01:28:17",
    "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 Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421733-160420a-CMCST); Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST); Cisco DPC3939B (firmware version dpc3939b-v303r204217-150321a-CMCST); Cisco DPC3941T (firmware version DPC3941_2.5s3_PROD_sey); and Arris TG1682G (eMTA&DOCSIS version 10.0.132.SIP.PC20.CT, software version TG1682_2.2p7s2_PROD_sey) devices allows remote attackers to execute arbitrary code via a specific (but unstated) exposed service. NOTE: the scope of this CVE does NOT include the concept of \"Unnecessary Services\" in general; the scope is only a single service that is unnecessarily exposed, leading to remote code execution. The details of that service might be disclosed at a later date.",
    "epss_score": "0.03262",
    "epss_percentile": "0.88057",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-10 18:17:17",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "cisco",
            "product": "dpc3939"
        },
        {
            "vendor": "cisco",
            "product": "dpc3939_firmware"
        },
        {
            "vendor": "cisco",
            "product": "dpc3939b"
        },
        {
            "vendor": "cisco",
            "product": "dpc3939b_firmware"
        },
        {
            "vendor": "cisco",
            "product": "dpc3941t"
        },
        {
            "vendor": "cisco",
            "product": "dpc3941t_firmware"
        },
        {
            "vendor": "commscope",
            "product": "arris_tg1682g"
        },
        {
            "vendor": "commscope",
            "product": "arris_tg1682g_firmware"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-32.unnecessary-services.txt",
        "https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-32.unnecessary-services.txt"
    ]
}