Ingres 2.5 and 2.6 on Windows, as used in multiple CA products and possibly other products, assigns the privileges and identity of users to be the same as the first user, which allows remote attackers to gain privileges.
http://www.vupen.com/english/advisories/2007/4304
http://www.vupen.com/english/advisories/2007/4303
http://www.securitytracker.com/id?1019134
http://www.securityfocus.com/bid/26959
http://www.securityfocus.com/archive/1/485448/100/0/threaded
http://www.ingres.com/support/security-alertDec17.php
http://supportconnectw.ca.com/public/ingres/infodocs/ingresmswin-secnot.asp