Description
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.
References (27)
... and 7 more
Scores
CVSS v3
7.5
EPSS
0.0248
EPSS Percentile
85.3%
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-834
Status
published
Products (27)
asus/rt-ac1750_b1_firmware
< 3.0.0.4.386.42095
asus/rt-ac1900_firmware
< 3.0.0.4.386.42095
asus/rt-ac1900p_firmware
< 3.0.0.4.386.42095
asus/rt-ac1900u_firmware
< 3.0.0.4.386.42095
asus/rt-ac2900_firmware
< 3.0.0.4.386.42095
asus/rt-ac3100_firmware
< 3.0.0.4.386.42095
asus/rt-ac5300_firmware
< 3.0.0.4.386.42095
asus/rt-ac58u_firmware
< 3.0.0.4.386.42095
asus/rt-ac65u_firmware
< 3.0.0.4.386.42095
asus/rt-ac66u_b1_firmware
< 3.0.0.4.386.42095
... and 17 more
Published
Apr 12, 2021
Tracked Since
Feb 18, 2026