There are a few CPU miners.  One is listed on the Ultracoin forum too.  However, there is one specific miner that is best and most up to date.
 
-Manual N parameters for multiple coins
-X86 and 64bit formats
-Stratum pool capable
-Scrypt optimizations for Scrypt-Jane

https://github.com/thirtybird/cpuminer/releases/

This is the absolute best CPU miner out there currently.  I believe it has all the needs being asked for.