I am worried about the millions (actually, worried about mine) of routers/modems that run Linux. How exposed are they to Shellshock?
Ubiquiti Routers running EdgeOS have much beefier hardware, and run a derivative of Vayatta on Linux that includes bash. Those are likely vulnerable.
Endian Community Firewall is also currently vulnerable, even though they have already released a patch for their paying customers. Planning on switching to Sophos UTM soon.