Source-routed IPv4 packets were disabled by default. This issue is fixed in AirPort Base Station Firmware Update 7.8.1, AirPort Base Station Firmware Update 7.9.1. Source-routed IPv4 packets may be unexpectedly accepted.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8580
Reference (s):
- https://support.apple.com/en-us/HT210090
- URL: https://support.apple.com/en-us/HT210090
- https://support.apple.com/en-us/HT210091
- URL: https://support.apple.com/en-us/HT210091