{
    "id": "CVE-2021-41435",
    "published": "2021-11-19 12:15:09",
    "last_modified": "2026-07-09 01:17:02",
    "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": "CWE-307",
    "description": "A brute-force protection bypass in CAPTCHA protection in ASUS ROG Rapture GT-AX11000, RT-AX3000, RT-AX55, RT-AX56U, RT-AX56U_V2, RT-AX58U, RT-AX82U, RT-AX82U GUNDAM EDITION, RT-AX86 Series(RT-AX86U/RT-AX86S), RT-AX86U ZAKU II EDITION, RT-AX88U, RT-AX92U, TUF Gaming AX3000, TUF Gaming AX5400 (TUF-AX5400), ASUS ZenWiFi XD6, ASUS ZenWiFi AX (XT8) before 3.0.0.4.386.45898, and RT-AX68U before 3.0.0.4.386.45911, allows a remote attacker to attempt any number of login attempts via sending a specific HTTP request.",
    "epss_score": "0.06491",
    "epss_percentile": "0.93574",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-06 18:17:27",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "asus",
            "product": "gt-ax11000"
        },
        {
            "vendor": "asus",
            "product": "gt-ax11000_firmware"
        },
        {
            "vendor": "asus",
            "product": "rt-ax3000"
        },
        {
            "vendor": "asus",
            "product": "rt-ax3000_firmware"
        },
        {
            "vendor": "asus",
            "product": "rt-ax55"
        },
        {
            "vendor": "asus",
            "product": "rt-ax55_firmware"
        },
        {
            "vendor": "asus",
            "product": "rt-ax56u"
        },
        {
            "vendor": "asus",
            "product": "rt-ax56u_firmware"
        },
        {
            "vendor": "asus",
            "product": "rt-ax56u_v2"
        },
        {
            "vendor": "asus",
            "product": "rt-ax56u_v2_firmware"
        },
        {
            "vendor": "asus",
            "product": "rt-ax58u"
        },
        {
            "vendor": "asus",
            "product": "rt-ax58u_firmware"
        },
        {
            "vendor": "asus",
            "product": "rt-ax68u"
        },
        {
            "vendor": "asus",
            "product": "rt-ax68u_firmware"
        },
        {
            "vendor": "asus",
            "product": "rt-ax82u"
        },
        {
            "vendor": "asus",
            "product": "rt-ax82u_firmware"
        },
        {
            "vendor": "asus",
            "product": "rt-ax82u_gundam_edition"
        },
        {
            "vendor": "asus",
            "product": "rt-ax82u_gundam_edition_firmware"
        },
        {
            "vendor": "asus",
            "product": "rt-ax86s"
        },
        {
            "vendor": "asus",
            "product": "rt-ax86s_firmware"
        },
        {
            "vendor": "asus",
            "product": "rt-ax86u"
        },
        {
            "vendor": "asus",
            "product": "rt-ax86u_firmware"
        },
        {
            "vendor": "asus",
            "product": "rt-ax86u_zaku_ii_edition"
        },
        {
            "vendor": "asus",
            "product": "rt-ax86u_zaku_ii_edition_firmware"
        },
        {
            "vendor": "asus",
            "product": "rt-ax88u"
        },
        {
            "vendor": "asus",
            "product": "rt-ax88u_firmware"
        },
        {
            "vendor": "asus",
            "product": "rt-ax92u"
        },
        {
            "vendor": "asus",
            "product": "rt-ax92u_firmware"
        },
        {
            "vendor": "asus",
            "product": "tuf_gaming_ax3000"
        },
        {
            "vendor": "asus",
            "product": "tuf_gaming_ax3000_firmware"
        },
        {
            "vendor": "asus",
            "product": "tuf-ax5400"
        },
        {
            "vendor": "asus",
            "product": "tuf-ax5400_firmware"
        },
        {
            "vendor": "asus",
            "product": "zenwifi_ax_\\(xt8\\)"
        },
        {
            "vendor": "asus",
            "product": "zenwifi_ax_\\(xt8\\)_firmware"
        },
        {
            "vendor": "asus",
            "product": "zenwifi_xd6"
        },
        {
            "vendor": "asus",
            "product": "zenwifi_xd6_firmware"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://rog.asus.com/networking/rog-rapture-gt-ax11000-model/helpdesk_bios",
        "https://www.asus.com/Networking-IoT-Servers/Whole-Home-Mesh-WiFi-System/ZenWiFi-WiFi-Systems/ASUS-ZenWiFi-AX-XT8-/HelpDesk_BIOS/",
        "https://www.asus.com/Networking-IoT-Servers/Whole-Home-Mesh-WiFi-System/ZenWiFi-WiFi-Systems/ASUS-ZenWiFi-XD6/HelpDesk_BIOS/",
        "https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-WiFi-Routers/RT-AX3000/HelpDesk_BIOS/",
        "https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-WiFi-Routers/RT-AX56U/HelpDesk_BIOS/",
        "https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-WiFi-Routers/RT-AX68U/HelpDesk_BIOS/",
        "https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/All-series/RT-AX55/HelpDesk_BIOS/",
        "https://rog.asus.com/networking/rog-rapture-gt-ax11000-model/helpdesk_bios",
        "https://www.asus.com/Networking-IoT-Servers/Whole-Home-Mesh-WiFi-System/ZenWiFi-WiFi-Systems/ASUS-ZenWiFi-AX-XT8-/HelpDesk_BIOS/",
        "https://www.asus.com/Networking-IoT-Servers/Whole-Home-Mesh-WiFi-System/ZenWiFi-WiFi-Systems/ASUS-ZenWiFi-XD6/HelpDesk_BIOS/",
        "https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-WiFi-Routers/RT-AX3000/HelpDesk_BIOS/",
        "https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-WiFi-Routers/RT-AX56U/HelpDesk_BIOS/",
        "https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-WiFi-Routers/RT-AX68U/HelpDesk_BIOS/",
        "https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/All-series/RT-AX55/HelpDesk_BIOS/"
    ]
}