Did you try the latest jbossws-cxf-3.3.0.CR2 (http://anonsvn.jboss.org/repos/jbossws/stack/cxf/tags/jbossws-cxf-3.3.0.CR2)? It includes the cxf 2.2.6 . Because there is a regression issue in cxf 2.2.7 , we will ship the cxf 2.2.8 in the next release. Let me know if jbossws-cxf-3.3.0.CR2 works for the NTLM authentication in JBoss 5.