It already had a name from the people who discovered the exploit - "Curse of Silence", I think.
Curse SMS would just be a shorter, more descriptive name - antivirus vendors often pick short names for viruses.
Obscure SMS bug no need to panic
I don't know much about the guy who reported the bug, but it's quite trivial that it's not S60 specific, as the SMS MTM and the Messaging Server are at Symbian-level.
Just to confirm my theory, I've tried the CoS on a Sony-Ericsson P990i, and the SMS watcher daemon crashed just as well, with the same USER 11 (descriptor overflow) panic.
So it's not just Nokia phones that are affected.
Anyway, it seems like a nice "hey, no one uses this, let's just hack a TBuf<32> here and be done with it" kind of bug.