The web framework in Cisco Transport Gateway for Smart Call Home (aka TG-SCH or Transport Gateway Installation Software) does not validate an unspecified parameter, which allows remote authenticated users to cause a denial of service (service crash) via a crafted string, aka Bug ID CSCuq31819.
Improper Input Validation The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly.