Normally, just depend on cxf-rt-frontend-jaxws and cxf-rt-transport-http. Pretty much the rest of the stuff needed would be pulled in transitively from those. (might not even need cxf-rt-transport-http) That would cover 90% of the usecases.
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-frontend-jaxws</artifactId>
<version>2.2.5</version>
</dependency>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-transports-http</artifactId>
<version>2.2.5</version>
</dependency>
For more advanced things like WS-Security and WS-RM and JAX-RS, you would need to add additional modules.