This can be a problem when the allocated size of the affected buffer is too small and the current depth of the stack is shallow (i.e., there is not much space from the end of the current stack frame to the start of the stack). Despite its problems, the NOP-sled is often the only method that will work for a given platform, environment, or situation, and as such it is still an important technique.
A potential issue arises when the allocated space for the affected buffer is insufficient and the current depth of the stack is shallow. In such cases, the NOP-sled often proves to be the only feasible solution, rendering it a valuable method nonetheless.