CVE-2021-22161

In OpenWrt 19.07.x before 19.07.7, when IPv6 is used, a routing loop can occur that generates excessive network traffic between an affected device and its…

published February 7, 2021

CVSS
—
EPSS
1%
Percentile
43.6
In the wild
Unconfirmed
What it is

In OpenWrt 19.07.x before 19.07.7, 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. This affects the netifd and odhcp6c packages.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00524 · 43.6th percentile
Published
2021-02-07T22:56Z
EPSS history
Timeline
  • 07 FEB 22:56Z
    In OpenWrt 19.07.x before 19.07.7, when IPv6 is used, a routing loop can occur that generates excessive network traffic between an affected device and its…
    cvelistv5