Stack-based buffer overflow in the Agent Browser in Veritas Backup Exec 8.x before 8.60.3878 Hotfix 68, and 9.x before 9.1.4691 Hotfix 40, allows remote attackers to execute arbitrary code via a registration request with a long hostname.
Veritas Backup Exec 8.5 and earlier requires that the "RestrictAnonymous" registry key for Microsoft Exchange 2000 must be set to 0, which enables anonymous listing of the SAM database and shares.