Secret backdoor discovered in Zyxel firewalls and AP controllers
![OpenWrt Wiki] ZyXEL NBG6716](https://openwrt.org/_media/media/zyxel/nbg6716_general_view.png "OpenWrt Wiki] ZyXEL NBG6716")
OpenWrt Wiki] ZyXEL NBG6716
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ZyXEL Wireless N Router 150 mbps 2.4 GHz NBG-416N Used | eBay
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![OpenWrt Wiki] ZyXEL NBG-419N v2](https://openwrt.org/_media/media/zyxel/nbg419n/nbg419n_v2_general_view.png "OpenWrt Wiki] ZyXEL NBG-419N v2")
OpenWrt Wiki] ZyXEL NBG-419N v2
Zyxel Router Firmware Uprade
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![ZyWALL/USG] Firmware Upgrade Procedure – Zyxel Support Campus USA](https://mysupport.zyxel.com/hc/article_attachments/360003985959/zld-firmware-upgrade-v4.25.001.png "ZyWALL/USG] Firmware Upgrade Procedure – Zyxel Support Campus USA")
ZyWALL/USG] Firmware Upgrade Procedure – Zyxel Support Campus USA
![ZyWALL/USG] Firmware Upgrade Procedure – Zyxel Support Campus USA](https://mysupport.zyxel.com/hc/article_attachments/360003909320/zld-firmware-upgrade-v4.25.010.png "ZyWALL/USG] Firmware Upgrade Procedure – Zyxel Support Campus USA")
ZyWALL/USG] Firmware Upgrade Procedure – Zyxel Support Campus USA
VMG - How to upgrade the firmware – Zyxel Support Campus EMEA
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![ZyWALL/USG] Firmware Upgrade Procedure – Zyxel Support Campus USA](https://mysupport.zyxel.com/hc/article_attachments/360003985999/zld-firmware-upgrade-v4.25.006.png "ZyWALL/USG] Firmware Upgrade Procedure – Zyxel Support Campus USA")
ZyWALL/USG] Firmware Upgrade Procedure – Zyxel Support Campus USA
Network Upgrades - Vectoring | CenturyLink
