5
CVSSv2

CVE-2021-3128

Published: 12/04/2021 Updated: 20/04/2021
CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10
CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9
VMScore: 445
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Vulnerability Summary

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.

Vulnerability Trend

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asus zenwifi_ax_\\(xt8\\)_firmware

asus rt-ax3000_firmware

asus rt-ax55_firmware

asus rt-ax56u_firmware

asus rt-ax58u_firmware

asus rt-ax68u_firmware

asus rt-ax82u_firmware

asus rt-ax86u_firmware

asus rt-ax88u_firmware

asus rt-ac66u_b1_firmware

asus rt-ac1750_b1_firmware

asus rt-ac1900_firmware

asus rt-ac1900p_firmware

asus rt-ac1900u_firmware

asus rt-ac2900_firmware

asus rt-ac3100_firmware

asus rt-ac5300_firmware

asus rt-ac58u_firmware

asus rt-ac65u_firmware

asus rt-ac68p_firmware

asus rt-ac68r_firmware

asus rt-ac68rw_firmware

asus rt-ac68u_firmware

asus rt-ac68w_firmware

asus rt-ac85u_firmware

asus rt-ac86u_firmware

asus rt-ac88u_firmware

References

CWE-834https://www.asus.com/supportonly/RT-AC3100/HelpDesk_download/https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX55/HelpDesk_BIOS/https://www.asus.com/supportonly/RT-AC1900P/HelpDesk_download/https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX88U/HelpDesk_BIOS/https://www.asus.com/supportonly/RT-AC68RW/HelpDesk_download/https://www.asus.com/supportonly/RT-AC65U/HelpDesk_download/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/WiFi-6/All-series/RT-AX82U/HelpDesk_BIOS/https://www.asus.com/supportonly/RT-AC2900/HelpDesk_download/https://www.asus.com/supportonly/RT-AC1900U/HelpDesk_download/https://www.asus.com/supportonly/RT-AC1900/HelpDesk_download/https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX86U/HelpDesk_BIOS/https://www.asus.com/supportonly/RT-AC58U/HelpDesk_download/https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX58U/HelpDesk_BIOS/https://www.asus.com/supportonly/RT-AC86U/HelpDesk_download/https://www.asus.com/supportonly/RT-AC1750_B1/HelpDesk_download/https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX3000/HelpDesk_BIOS/https://www.asus.com/Networking-IoT-Servers/WiFi-Routers/ASUS-WiFi-Routers/RT-AC66U-B1/HelpDesk_Download/https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX68U/HelpDesk_BIOS/https://www.asus.com/supportonly/RT-AC88U/HelpDesk_download/https://www.asus.com/Networking-IoT-Servers/WiFi-6/All-series/RT-AX56U/HelpDesk_BIOS/https://www.asus.com/supportonly/RT-AC5300/HelpDesk_download/https://www.asus.com/supportonly/RT-AC68W/HelpDesk_download/https://www.asus.com/supportonly/RT-AC68P/HelpDesk_download/https://www.asus.com/supportonly/RT-AC68U/HelpDesk_download/https://www.asus.com/supportonly/RT-AC68R/HelpDesk_download/https://www.asus.com/supportonly/RT-AC85U/HelpDesk_download/https://nvd.nist.gov