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ESI Statement on Recent ZyXEL Patch 5.36 ABAR1
ESI is aware of a recent patch developed by ZyXEL that mitigates a malware attack against the Virtual Private Network (VPN) services utilized on ZyXEL devices.
The attack in question locks up the firewall so that administrative access and network traffic are hindered and, in some cases, completely blocked.
As ESI offers the USG20W-VPN (renamed FLEX 50W) as an option. This notification is being sent out to urge customers with those devices to upgrade to the latest firmware (5.36 ABAR1) immediately.
The following is a link to the notice from ZyXEL on their community page: https://community.zyxel.com/en/discussion/17111/zyxel-security-advisory-for-multiple-buffer-overflow-vulnerabilities-of-firewalls
If help is needed to perform this upgrade, please contact ESI Technical Support to arrange a time to work with a network technician via one of the following: Technical Support phone number: 972-422-9700 Technical Support email: firstname.lastname@example.org
ESI Cloud's mobile solution for iOS and Android
ESI & 3rd Party phones using eCloud services.
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Services associated with the Access Dashboard. This would not affect the firmware of the actual access devices.