{
    "id": "CVE-2017-11120",
    "published": "2017-09-28 01:29:01",
    "last_modified": "2026-06-17 01:01:15",
    "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": "On Broadcom BCM4355C0 Wi-Fi chips 9.44.78.27.0.1.56 and other chips, an attacker can craft a malformed RRM neighbor report frame to trigger an internal buffer overflow in the Wi-Fi firmware, aka B-V2017061204.",
    "epss_score": "0.09129",
    "epss_percentile": "0.95150",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-27 18:17:17",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "apple",
            "product": "iphone_os"
        },
        {
            "vendor": "apple",
            "product": "tvos"
        },
        {
            "vendor": "broadcom",
            "product": "bcm4355c0"
        },
        {
            "vendor": "broadcom",
            "product": "bcm4355c0_firmware"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "42784",
            "title": "Apple iOS 10.2 - Broadcom Out-of-Bounds Write when Handling 802.11k Neighbor Report Response",
            "date": "2017-09-25",
            "url": "https://www.exploit-db.com/exploits/42784"
        }
    ],
    "refs_list": [
        "http://packetstormsecurity.com/files/144328/Broadcom-802.11k-Neighbor-Report-Response-Out-Of-Bounds-Write.html",
        "http://www.securityfocus.com/bid/100984",
        "https://bugs.chromium.org/p/project-zero/issues/detail?id=1289",
        "https://lists.apple.com/archives/security-announce/2017/Sep/msg00007.html",
        "https://lists.apple.com/archives/security-announce/2017/Sep/msg00009.html",
        "https://source.android.com/security/bulletin/2017-09-01",
        "https://support.apple.com/HT208112",
        "https://support.apple.com/HT208113",
        "https://support.apple.com/en-us/HT208112",
        "https://support.apple.com/en-us/HT208113",
        "https://www.exploit-db.com/exploits/42784/",
        "http://packetstormsecurity.com/files/144328/Broadcom-802.11k-Neighbor-Report-Response-Out-Of-Bounds-Write.html",
        "http://www.securityfocus.com/bid/100984",
        "https://bugs.chromium.org/p/project-zero/issues/detail?id=1289",
        "https://lists.apple.com/archives/security-announce/2017/Sep/msg00007.html",
        "https://lists.apple.com/archives/security-announce/2017/Sep/msg00009.html",
        "https://source.android.com/security/bulletin/2017-09-01",
        "https://support.apple.com/HT208112",
        "https://support.apple.com/HT208113",
        "https://support.apple.com/en-us/HT208112",
        "https://support.apple.com/en-us/HT208113",
        "https://www.exploit-db.com/exploits/42784/"
    ]
}