const CuePoint* Cues::GetLast() const {
 if (m_cue_points == NULL || m_count <= 0)
 return NULL;

 const long index = m_count - 1;

 CuePoint* const* const pp = m_cue_points;
 if (pp == NULL)
 return NULL;

 CuePoint* const pCP = pp[index];
 if (pCP == NULL || pCP->GetTimeCode() < 0)
 return NULL;

 return pCP;
}

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.