It seems like there was an issue with Mcafee VSE after Mcafee engine upgrade. I suggest you to re-install Mcafee VSE 8.8 patch 4 pakcage and try to update 5700 engine version, then update security now.
I hope this will resolve you issues. Kindly send the update log file if you still recevie any error.
thank u for your reply..
Can it also be the cause that the account used for installation does not exist or does not have access anymore to the server??