Buffer overflow in the ViewerCtrlLib.ViewerCtrl ActiveX control in Avaya IP Office Contact Center before 10.1.1 allows remote attackers to cause a denial of service (heap corruption and crash) or execute arbitrary code via a long string to the open method.

A vulnerability in the one-X Portal component of Avaya IP Office allows an authenticated attacker to read and delete arbitrary files on the system. Affected versions of Avaya IP Office include 9.1 through 9.1 SP12, 10.0 through 10.0 SP7, and 10.1 through 10.1 SP2.