The host is installed with IBM Tivoli Storage Manager (TSM) before 6.2.5.0, 6.3 before 6.3.1.0 or 6.4 before 6.4.0.1 and is prone to denial-of-service vulnerability. A flaw is present in the application, which fails to properly restrict access to the traditional scheduler. Successful exploitation allows remote attackers to cause a denial of service (scheduling outage) via unspecified vectors.