CVE-2021-41436

HIGH

Asus Gt-ax11000 Firmware < 3.0.0.4.386.45898 - HTTP Request Smuggling

Title source: rule

Description

An HTTP request smuggling in web application 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 unauthenticated attacker to DoS via sending a specially crafted HTTP packet.

References (8)

[Vendor Advisory] http://asus.com

[Product, Vendor Advisory] https://www.asus.com/Networking-IoT-Servers/Whole-Home-Mesh-WiFi-System/ZenWiFi-WiFi-Systems/ASUS-ZenWiFi-AX-XT8-/HelpDesk_BIOS/

[Product, Vendor Advisory] https://rog.asus.com/networking/rog-rapture-gt-ax11000-model/helpdesk_bios

[Product, Vendor Advisory] https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-WiFi-Routers/RT-AX3000/HelpDesk_BIOS/

[Product, Vendor Advisory] https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/All-series/RT-AX55/HelpDesk_BIOS/

[Product, Vendor Advisory] https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-WiFi-Routers/RT-AX56U/HelpDesk_BIOS/

[Product, Vendor Advisory] https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-WiFi-Routers/RT-AX68U/HelpDesk_BIOS/

[Product, Vendor Advisory] https://www.asus.com/Networking-IoT-Servers/Whole-Home-Mesh-WiFi-System/ZenWiFi-WiFi-Systems/ASUS-ZenWiFi-XD6/HelpDesk_BIOS/

Scores

CVSS v3 7.5

EPSS 0.0458

EPSS Percentile 89.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE

CWE-444

Status published

Products (18)

asus/gt-ax11000_firmware < 3.0.0.4.386.45898

asus/rt-ax3000_firmware < 3.0.0.4.386.45898

asus/rt-ax55_firmware < 3.0.0.4.386.45898

asus/rt-ax56u_firmware < 3.0.0.4.386.45898

asus/rt-ax56u_v2_firmware < 3.0.0.4.386.45898

asus/rt-ax58u_firmware < 3.0.0.4.386.45898

asus/rt-ax68u_firmware < 3.0.0.4.386.45911

asus/rt-ax82u_firmware < 3.0.0.4.386.45898

asus/rt-ax82u_gundam_edition_firmware < 3.0.0.4.386.45898

asus/rt-ax86s_firmware < 3.0.0.4.386.45898

... and 8 more

Published Nov 19, 2021

Tracked Since Feb 18, 2026