Bash bug. Non-ZyNOS affected?

http://www.theverge.com/2014/9/25/6843669/bash-shellshock-network-worm-could-cause-internet-meltdown Anyone know if the newer ZyWALL routers that don't run ZyNOS are affected? At minimum, it seems advisable to shut down access to the web server from the WAN zones. Yet another example of why this is an ATROCIOUS thing to have enabled by default.