{
    "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2021-3128",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "n/a",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "n/a"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "n/a"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In ASUS RT-AX3000, ZenWiFi AX (XT8), RT-AX88U, and other ASUS routers with firmware < 3.0.0.4.386.42095 or < 9.0.0.4.386.41994, when IPv6 is used, a routing loop can occur that generates excessive network traffic between an affected device and its upstream ISP's router. This occurs when a link prefix route points to a point-to-point link, a destination IPv6 address belongs to the prefix and is not a local IPv6 address, and a router advertisement is received with at least one global unique IPv6 prefix for which the on-link flag is set."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX3000/HelpDesk_BIOS/",
                "url": "https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX3000/HelpDesk_BIOS/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/Networking-IoT-Servers/Whole-Home-Mesh-WiFi-System/ZenWiFi-WiFi-Systems/ASUS-ZenWiFi-AX-XT8-/HelpDesk_BIOS/",
                "url": "https://www.asus.com/Networking-IoT-Servers/Whole-Home-Mesh-WiFi-System/ZenWiFi-WiFi-Systems/ASUS-ZenWiFi-AX-XT8-/HelpDesk_BIOS/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX88U/HelpDesk_BIOS/",
                "url": "https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX88U/HelpDesk_BIOS/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX86U/HelpDesk_BIOS/",
                "url": "https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX86U/HelpDesk_BIOS/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX82U/HelpDesk_BIOS/",
                "url": "https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX82U/HelpDesk_BIOS/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX68U/HelpDesk_BIOS/",
                "url": "https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX68U/HelpDesk_BIOS/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX58U/HelpDesk_BIOS/",
                "url": "https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX58U/HelpDesk_BIOS/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX56U/HelpDesk_BIOS/",
                "url": "https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX56U/HelpDesk_BIOS/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX55/HelpDesk_BIOS/",
                "url": "https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX55/HelpDesk_BIOS/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/supportonly/RT-AC5300/HelpDesk_download/",
                "url": "https://www.asus.com/supportonly/RT-AC5300/HelpDesk_download/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/supportonly/RT-AC88U/HelpDesk_download/",
                "url": "https://www.asus.com/supportonly/RT-AC88U/HelpDesk_download/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/supportonly/RT-AC3100/HelpDesk_download/",
                "url": "https://www.asus.com/supportonly/RT-AC3100/HelpDesk_download/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/supportonly/RT-AC86U/HelpDesk_download/",
                "url": "https://www.asus.com/supportonly/RT-AC86U/HelpDesk_download/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/supportonly/RT-AC2900/HelpDesk_download/",
                "url": "https://www.asus.com/supportonly/RT-AC2900/HelpDesk_download/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/supportonly/RT-AC1750_B1/HelpDesk_download/",
                "url": "https://www.asus.com/supportonly/RT-AC1750_B1/HelpDesk_download/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/supportonly/RT-AC1900/HelpDesk_download/",
                "url": "https://www.asus.com/supportonly/RT-AC1900/HelpDesk_download/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/supportonly/RT-AC1900P/HelpDesk_download/",
                "url": "https://www.asus.com/supportonly/RT-AC1900P/HelpDesk_download/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/supportonly/RT-AC1900U/HelpDesk_download/",
                "url": "https://www.asus.com/supportonly/RT-AC1900U/HelpDesk_download/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-WiFi-Routers/RT-AC66U-B1/HelpDesk_Download/",
                "url": "https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-WiFi-Routers/RT-AC66U-B1/HelpDesk_Download/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/supportonly/RT-AC68P/HelpDesk_download/",
                "url": "https://www.asus.com/supportonly/RT-AC68P/HelpDesk_download/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/supportonly/RT-AC68R/HelpDesk_download/",
                "url": "https://www.asus.com/supportonly/RT-AC68R/HelpDesk_download/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/supportonly/RT-AC68RW/HelpDesk_download/",
                "url": "https://www.asus.com/supportonly/RT-AC68RW/HelpDesk_download/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/supportonly/RT-AC68U/HelpDesk_download/",
                "url": "https://www.asus.com/supportonly/RT-AC68U/HelpDesk_download/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/supportonly/RT-AC58U/HelpDesk_download/",
                "url": "https://www.asus.com/supportonly/RT-AC58U/HelpDesk_download/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/supportonly/RT-AC85U/HelpDesk_download/",
                "url": "https://www.asus.com/supportonly/RT-AC85U/HelpDesk_download/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/supportonly/RT-AC65U/HelpDesk_download/",
                "url": "https://www.asus.com/supportonly/RT-AC65U/HelpDesk_download/"
            },
            {
                "refsource": "MISC",
                "name": "https://www.asus.com/supportonly/RT-AC68W/HelpDesk_download/",
                "url": "https://www.asus.com/supportonly/RT-AC68W/HelpDesk_download/"
            }
        ]
    }
}