Last Modified: Mar 27, 2026
Affected Product(s):
F5OS F5OS-A
Known Affected Versions:
F5OS-A 1.8.0, F5OS-A 1.8.1, F5OS-A 1.8.2, F5OS-A 1.8.3
Opened: Oct 15, 2025 Severity: 3-Major
Some packets destined to the internal Kubernetes API server may leave the system's management port towards the configured management gateway for up to 10 seconds during platform services shutdown or reboot. These packets will be destined to an IP address in the internal network range on TCP port 6443, by default 100.64.0.0/12 (RFC6598).
There is no known impact to system operation. Packets will no longer leave the management port once platform services start up again, which happens automatically on system startup. The small number of "leaked" packets may occasionally be observed in monitoring or logs from external systems such as firewalls.
Platform services are shutting down, typically during a system reboot.
None
None