ping.php in Global Console Manager 16 (GCM16) and Global Console Manager 32 (GCM32) before 1.20.0.22575 on the IBM Avocent 1754 KVM switch allows remote authenticated users to execute arbitrary commands via shell metacharacters in the (1) count or (2) size parameter.
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.