The mailbox-restore feature in IBM Tivoli Storage Manager for Mail: Data Protection for Microsoft Exchange Server 6.1 before 6.1.3.6, 6.3 before 6.3.1.3, 6.4 before 6.4.1.4, and 7.1 before 7.1.0.2; Tivoli Storage FlashCopy Manager: FlashCopy Manager for Microsoft Exchange Server 2.1, 2.2, 3.1 before 3.1.1.5, 3.2 before 3.2.1.7, and 4.1 before 4.1.1; and Tivoli Storage Manager FastBack for Microsoft Exchange 6.1 before 6.1.5.4 does not ensure that the correct mailbox is selected, which allows remote authenticated users to obtain sensitive information via a duplicate alias name.