cbcvebase.
CVE-2021-3128
published 2021-04-12

CVE-2021-3128: 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…

PriorityP341high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
2.18%
80.4th percentile
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.

Affected

54 ranges· showing 25
VendorProductVersion rangeFixed in
asusrt-ac1750_b1_firmware< 3.0.0.4.386.420953.0.0.4.386.42095
asusrt-ac1750_b1_firmware< 9.0.0.4.386.419949.0.0.4.386.41994
asusrt-ac1900_firmware< 3.0.0.4.386.420953.0.0.4.386.42095
asusrt-ac1900_firmware< 9.0.0.4.386.419949.0.0.4.386.41994
asusrt-ac1900p_firmware< 3.0.0.4.386.420953.0.0.4.386.42095
asusrt-ac1900p_firmware< 9.0.0.4.386.419949.0.0.4.386.41994
asusrt-ac1900u_firmware< 3.0.0.4.386.420953.0.0.4.386.42095
asusrt-ac1900u_firmware< 9.0.0.4.386.419949.0.0.4.386.41994
asusrt-ac2900_firmware< 3.0.0.4.386.420953.0.0.4.386.42095
asusrt-ac2900_firmware< 9.0.0.4.386.419949.0.0.4.386.41994
asusrt-ac3100_firmware< 3.0.0.4.386.420953.0.0.4.386.42095
asusrt-ac3100_firmware< 9.0.0.4.386.419949.0.0.4.386.41994
asusrt-ac5300_firmware< 3.0.0.4.386.420953.0.0.4.386.42095
asusrt-ac5300_firmware< 9.0.0.4.386.419949.0.0.4.386.41994
asusrt-ac58u_firmware< 3.0.0.4.386.420953.0.0.4.386.42095
asusrt-ac58u_firmware< 9.0.0.4.386.419949.0.0.4.386.41994
asusrt-ac65u_firmware< 3.0.0.4.386.420953.0.0.4.386.42095
asusrt-ac65u_firmware< 9.0.0.4.386.419949.0.0.4.386.41994
asusrt-ac66u_b1_firmware< 3.0.0.4.386.420953.0.0.4.386.42095
asusrt-ac66u_b1_firmware< 9.0.0.4.386.419949.0.0.4.386.41994
asusrt-ac68p_firmware< 3.0.0.4.386.420953.0.0.4.386.42095
asusrt-ac68p_firmware< 9.0.0.4.386.419949.0.0.4.386.41994
asusrt-ac68r_firmware< 3.0.0.4.386.420953.0.0.4.386.42095
asusrt-ac68r_firmware< 9.0.0.4.386.419949.0.0.4.386.41994
asusrt-ac68rw_firmware< 3.0.0.4.386.420953.0.0.4.386.42095

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
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