High severity7.5NVD Advisory· Published Nov 19, 2021· Updated Jul 9, 2026
CVE-2021-41436
CVE-2021-41436
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
22- cpe:2.3:o:asus:rt-ax56u_v2_firmware:*:*:*:*:*:*:*:*Range: <3.0.0.4.386.45898
- cpe:2.3:o:asus:rt-ax82u_gundam_edition_firmware:*:*:*:*:*:*:*:*Range: <3.0.0.4.386.45898
- cpe:2.3:o:asus:rt-ax86u_zaku_ii_edition_firmware:*:*:*:*:*:*:*:*Range: <3.0.0.4.386.45898
- cpe:2.3:o:asus:tuf_gaming_ax3000_firmware:*:*:*:*:*:*:*:*Range: <3.0.0.4.386.45898
- cpe:2.3:o:asus:zenwifi_ax_\(xt8\)_firmware:*:*:*:*:*:*:*:*Range: <3.0.0.4.386.45898
- cpe:2.3:o:asus:zenwifi_xd6_firmware:*:*:*:*:*:*:*:*Range: <3.0.0.4.386.45898
- 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 ZAKU II EDITION, RT-AX88U, RT-AX92U, TUF Gaming AX3000, TUF Gaming AX5400, ZenWiFi XD6, ZenWiFi AXdescription
- Range: <3.0.0.4.386.45898
- Range: <3.0.0.4.386.45898
Patches
Vulnerability mechanics
References
7- rog.asus.com/networking/rog-rapture-gt-ax11000-model/helpdesk_biosnvdProductVendor Advisory
- www.asus.com/Networking-IoT-Servers/Whole-Home-Mesh-WiFi-System/ZenWiFi-WiFi-Systems/ASUS-ZenWiFi-AX-XT8-/HelpDesk_BIOS/nvdProductVendor Advisory
- www.asus.com/Networking-IoT-Servers/Whole-Home-Mesh-WiFi-System/ZenWiFi-WiFi-Systems/ASUS-ZenWiFi-XD6/HelpDesk_BIOS/nvdProductVendor Advisory
- www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-WiFi-Routers/RT-AX3000/HelpDesk_BIOS/nvdProductVendor Advisory
- www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-WiFi-Routers/RT-AX56U/HelpDesk_BIOS/nvdProductVendor Advisory
- www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-WiFi-Routers/RT-AX68U/HelpDesk_BIOS/nvdProductVendor Advisory
- www.asus.com/Networking-IoT-Servers/WiFi-Routers/All-series/RT-AX55/HelpDesk_BIOS/nvdProductVendor Advisory
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