Guard against “Misfortune Cookie” vulnerability

Zyxel security advisory for post-authentication memory corruption vulnerabilities in some DSL/Ethernet CPE, fiber ONT, and Wi-Fi extender versions

Zyxel security advisory for Meltdown and Spectre attacks

Zyxel security advisory for buffer overflow vulnerabilities in some 5G NR/4G LTE CPE, DSL/Ethernet CPE, fiber ONT, and Wi-Fi extender devices