DATE: COMMAND SOURCE: AUTHOR: MS Access SYSTEMS AFFECTED Win NT 3.5, 3.51, 4.0 Access 1.0/2.0 PROBLEM This vulnerability was originally presented on: www.ntshop.com/security and this text is their credit. A User SID can be read from a v1.0 database and pasted over a SID in the MSysAccounts table in the SystemDB, allowing someone to access a database as a different user. This affects MS Access v2.0 and v1.0 when a v1.0 database is opened. EXPLOIT SOLUTION Upgrde your software and look for any fix or SP. MS have not come across a way of preventing this type of attack, however they do, it will be posted to KB immediately.