There is a remote exploit against the SMB flaw we covered last week. While the exploit code is not in the wild, the capability to exploit this flaw can be obtained in exchange for a moderate amount of money. A security company which releases for-pay vulnerability info,Immunity Inc, has published a nice video showing just how easy it is to get a shell on a vulnerable host using their freshly-published exploit. Its therefore highly probable that that this exploit will start being used in the following days.”]
Source: https://www.bitdefender.com/blog/hotforsecurity/smb-vuln-headaches-continue/