{
    "id": "CVE-2017-12232",
    "published": "2017-09-29 01:34:48",
    "last_modified": "2026-06-17 01:02:55",
    "cvss_score": "6.5",
    "cvss_severity": "MEDIUM",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
    "cwe": "CWE-399",
    "description": "A vulnerability in the implementation of a protocol in Cisco Integrated Services Routers Generation 2 (ISR G2) Routers running Cisco IOS 15.0 through 15.6 could allow an unauthenticated, adjacent attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to a misclassification of Ethernet frames. An attacker could exploit this vulnerability by sending a crafted Ethernet frame to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCvc03809.",
    "epss_score": "0.02153",
    "epss_percentile": "0.81414",
    "kev": 1,
    "kev_due": "2022-03-24",
    "has_exploit": 0,
    "updated_at": "2026-09-26 18:21:56",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2022-03-24."
    },
    "products": [
        {
            "vendor": "cisco",
            "product": "1000_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1100_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1100-4g_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1100-4g\\/6g_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1100-4gltegb_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1100-4gltena_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1100-8p_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1100-lte_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1101_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1101-4p_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1109_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1109-2p_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1109-4p_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1111x_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1111x-8p_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "111x_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1120_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1131_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1160_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1801_integrated_service_router"
        },
        {
            "vendor": "cisco",
            "product": "1802_integrated_service_router"
        },
        {
            "vendor": "cisco",
            "product": "1803_integrated_service_router"
        },
        {
            "vendor": "cisco",
            "product": "1811_integrated_service_router"
        },
        {
            "vendor": "cisco",
            "product": "1812_integrated_service_router"
        },
        {
            "vendor": "cisco",
            "product": "1841_integrated_service_router"
        },
        {
            "vendor": "cisco",
            "product": "1861_integrated_service_router"
        },
        {
            "vendor": "cisco",
            "product": "1905_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1906c_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1921_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1941_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "1941w_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "4000_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "422_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "4221_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "4321_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "4321\\/k9_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "4321\\/k9-rf_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "4321\\/k9-ws_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "4331\\/k9-rf_integrated_services_router"
        },
        {
            "vendor": "cisco",
            "product": "ios"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2017-12232",
        "date_added": "2022-03-03",
        "due_date": "2022-03-24",
        "vendor": "Cisco",
        "product": "IOS software",
        "name": "Cisco IOS Software for Cisco Integrated Services Routers Denial-of-Service Vulnerability",
        "ransomware": 0
    },
    "exploits": [],
    "refs_list": [
        "http://www.securityfocus.com/bid/101044",
        "http://www.securitytracker.com/id/1039452",
        "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-rbip-dos",
        "http://www.securityfocus.com/bid/101044",
        "http://www.securitytracker.com/id/1039452",
        "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-rbip-dos",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-12232"
    ]
}