It doesn't go up to 12.0XW (stops at XV wouldn't you know it), so I'm not 100% sure if that means it's not vulnerable or not. I would guess that it is not, since the fact that it's not listed here means it wasn't released at the time, and all new releases since this advisory contain the fix. To be on the safe side though, I would suggest upgrading cause 12.0(5)WC5 is definately NOT affected.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...