This new high-ranked security vulnerability, code named
Shellshock since it operates through the bash shell, probably won't affect many folks here. But if you're a Linux user, or a Cygwin user like myself, or have a website hosted, then there is a chance you will want (or need) to patch your installation when the fix comes out.
Hopefully things will get patched before too many exploits occur in the wild. But it helps to be aware of this issue, and even if it doesn't affect you directly, you may see it affecting some site you do business with or visit for fun.