{
    "id": "CVE-2017-11420",
    "published": "2017-07-18 05:29:00",
    "last_modified": "2026-06-17 01:01:47",
    "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": "Stack-based buffer overflow in ASUS_Discovery.c in networkmap in Asuswrt-Merlin firmware for ASUS devices and ASUS firmware for ASUS RT-AC5300, RT_AC1900P, RT-AC68U, RT-AC68P, RT-AC88U, RT-AC66U, RT-AC66U_B1, RT-AC58U, RT-AC56U, RT-AC55U, RT-AC52U, RT-AC51U, RT-N18U, RT-N66U, RT-N56U, RT-AC3200, RT-AC3100, RT_AC1200GU, RT_AC1200G, RT-AC1200, RT-AC53, RT-N12HP, RT-N12HP_B1, RT-N12D1, RT-N12+, RT_N12+_PRO, RT-N16, and RT-N300 devices allows remote attackers to execute arbitrary code via long device information that is mishandled during a strcat to a device list.",
    "epss_score": "0.05607",
    "epss_percentile": "0.92695",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-06 18:17:15",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt_ac1200g"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt_ac1200g_firmware"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt_ac1200gu"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt_ac1200gu_firmware"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt_ac1900p_"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt_ac1900p_firmware"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac1200"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac1200_firmware"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac3100"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac3100_firmware"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac3200"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac3200_firmware"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac51u"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac51u_firmware"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac52u"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac52u_firmware"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac5300"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac5300_firmware"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac55u"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac55u_firmware"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac56u"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac56u_firmware"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac58u"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac58u_firmware"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac66u"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac66u_b1"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac66u_b1_firmware"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac66u_firmware"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac68p"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac68p_firmware"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac68u"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac68u_firmware"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac88u"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-ac88u_firmware"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-n18u"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-n18u_firmware"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-n56u"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-n56u_firmware"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-n66u"
        },
        {
            "vendor": "asuswrt-merlin_project",
            "product": "rt-n66u_firmware"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://www.openwall.com/lists/oss-security/2017/07/13/1",
        "https://asuswrt.lostrealm.ca/changelog",
        "http://www.openwall.com/lists/oss-security/2017/07/13/1",
        "https://asuswrt.lostrealm.ca/changelog"
    ]
}