Vulnerability Database

289,784

Total vulnerabilities in the database

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 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.

  • Published: Apr 12, 2021
  • Updated: Apr 14, 2023
  • CVE: CVE-2021-3128
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:N/I:N/A:P

CWEs:

Software From Fixed in
asus / zenwifi_ax_(xt8)_firmware - 3.0.0.4.386.42095
asus / zenwifi_ax_(xt8)_firmware - 9.0.0.4.386.41994
asus / rt-ax3000_firmware - 3.0.0.4.386.42095
asus / rt-ax3000_firmware - 9.0.0.4.386.41994
asus / rt-ax55_firmware - 3.0.0.4.386.42095
asus / rt-ax55_firmware - 9.0.0.4.386.41994
asus / rt-ax56u_firmware - 3.0.0.4.386.42095
asus / rt-ax56u_firmware - 9.0.0.4.386.41994
asus / rt-ax58u_firmware - 3.0.0.4.386.42095
asus / rt-ax58u_firmware - 9.0.0.4.386.41994
asus / rt-ax68u_firmware - 3.0.0.4.386.42095
asus / rt-ax68u_firmware - 9.0.0.4.386.41994
asus / rt-ax82u_firmware - 3.0.0.4.386.42095
asus / rt-ax82u_firmware - 9.0.0.4.386.41994
asus / rt-ax86u_firmware - 3.0.0.4.386.42095
asus / rt-ax86u_firmware - 9.0.0.4.386.41994
asus / rt-ax88u_firmware - 3.0.0.4.386.42095
asus / rt-ax88u_firmware - 9.0.0.4.386.41994
asus / rt-ac66u_b1_firmware - 3.0.0.4.386.42095
asus / rt-ac66u_b1_firmware - 9.0.0.4.386.41994
asus / rt-ac1750_b1_firmware - 3.0.0.4.386.42095
asus / rt-ac1750_b1_firmware - 9.0.0.4.386.41994
asus / rt-ac1900_firmware - 3.0.0.4.386.42095
asus / rt-ac1900_firmware - 9.0.0.4.386.41994
asus / rt-ac1900p_firmware - 3.0.0.4.386.42095
asus / rt-ac1900p_firmware - 9.0.0.4.386.41994
asus / rt-ac1900u_firmware - 3.0.0.4.386.42095
asus / rt-ac1900u_firmware - 9.0.0.4.386.41994
asus / rt-ac2900_firmware - 3.0.0.4.386.42095
asus / rt-ac2900_firmware - 9.0.0.4.386.41994
asus / rt-ac3100_firmware - 3.0.0.4.386.42095
asus / rt-ac3100_firmware - 9.0.0.4.386.41994
asus / rt-ac5300_firmware - 3.0.0.4.386.42095
asus / rt-ac5300_firmware - 9.0.0.4.386.41994
asus / rt-ac58u_firmware - 3.0.0.4.386.42095
asus / rt-ac58u_firmware - 9.0.0.4.386.41994
asus / rt-ac65u_firmware - 3.0.0.4.386.42095
asus / rt-ac65u_firmware - 9.0.0.4.386.41994
asus / rt-ac68p_firmware - 3.0.0.4.386.42095
asus / rt-ac68p_firmware - 9.0.0.4.386.41994
asus / rt-ac68r_firmware - 3.0.0.4.386.42095
asus / rt-ac68r_firmware - 9.0.0.4.386.41994
asus / rt-ac68rw_firmware - 3.0.0.4.386.42095
asus / rt-ac68rw_firmware - 9.0.0.4.386.41994
asus / rt-ac68u_firmware - 3.0.0.4.386.42095
asus / rt-ac68u_firmware - 9.0.0.4.386.41994
asus / rt-ac68w_firmware - 3.0.0.4.386.42095
asus / rt-ac68w_firmware - 9.0.0.4.386.41994
asus / rt-ac85u_firmware - 3.0.0.4.386.42095
asus / rt-ac85u_firmware - 9.0.0.4.386.41994
asus / rt-ac86u_firmware - 3.0.0.4.386.42095
asus / rt-ac86u_firmware - 9.0.0.4.386.41994
asus / rt-ac88u_firmware - 3.0.0.4.386.42095
asus / rt-ac88u_firmware - 9.0.0.4.386.41994