Vulnerabilities
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CVE Vulnerabilities

CVE-2021-3128

Excessive Iteration

Published: Apr 12, 2021 | Modified: Nov 21, 2024
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2021-3128
CWEhttps://cwe.mitre.org/data/definitions/834.html

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 ISPs 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.

Weakness

The product performs an iteration or loop without sufficiently limiting the number of times that the loop is executed.

Affected Software

NameVendorStart VersionEnd Version
Zenwifi_ax_(xt8)_firmwareAsus*3.0.0.4.386.42095 (excluding)

References

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