06/24/2013, 07:52 AM #4851 Model X just said that from his assumptions. He is after all only used to the terms used in his series.
Remember there are two types of Mavericks.
Flawed/ Error Mavericks
and Viral Mavericks
Flawed/Error Mavericks
There were Mavericks before Zero and his virus spreading capsule was uncovered. Though it is unknown, there is much speculation among fans that some of these Mavericks were caused by errors to their system: after all, X had not been fully analyzed, and he was working with an archaeologist, Dr. Cain, as opposed to a robotics specialist. So it makes sense that there might have been some errors to cause them to go insane. Errors which can be likened to humans with mental deficits or biological/emotional imbalance reacting to negative stress violently. Prior to X, Robots were made to provide humans with ease of living and subordinated to tasks deemed too dangerous or monotonous for humans to perform. By providing sentience, the ability to not just to think and learn, but most importantly to worry "To decide right and wrong for themselves", these first "Maverick incidents" may simply be the reploid equivalent of extreme dissident violence. Being as they have become essentially, a new social demographic born into autonomy to replace robots, with no previous ideology, ethical or moral code indoctrinated into them, other than specialized programming and bodies necessary for their tasks. It is implied by Doctor Light that he intended reploids to exist and develop their own society alongside mankind, peacefully. However since X's discovery and the proliferation of the reploids by Dr. Cain, these incidents intensified artificially after the discovery of Zero and the spread of the virus from Zero's capsule. Mavericks caused by technical flaws and errors in their Suffering Circuits are usually not destroyed, but rendered harmless for future repairs so they can be reintigrated into society. Zero himself in the beginning was a flawed Maverick, being unwilling to obey orders as well as relishing in causing destruction, which was primarily the reason why Dr. Wily sealed him away.
Viral Mavericks
The major cause of Mavericks is a sentient energy lifeform created in form of a computer virus called the Maverick Virus and later retroactively the Sigma Virus. The virus usually causes the infected Reploid's Suffering Circuit to malfunction, which results the victim to become very violent and irrational (in other words irregular), though this is not always the case (such as Sigma who merged with the virus instead). Viral Mavericks lose their inhibitions and their empathy as they will follow their own desires without any regret, even if they hurt humans and reploids alike in the process. Viral Mavericks infected by Sigma generally succumb to the belief that the human race is limiting the potential of Reploids. Those Mavericks often deliberately try to injure or kill humans. They will also not falter to attack other Reploids that are trying to defend humans. Reploids who are infected by the virus cannot be restored, because their data is corrupted. They had to be killed until the cure of the virus was found. It came finally with the creation of the Mother Elf.
Mavericks in this category include the infamous former head of the Maverick Hunters, Sigma, and Reploid scientists Dr. Doppler and Gate.
A similar (though not directly related) effect exists in Mega Man ZX and in Mega Man ZX Advent, in which Master Albert and former researcher Serpent were corrupted and manipulated by Model W (The former, Master Albert, which was the creator of Model W denies this), thus going Maverick in the same fashion. The majority of Mavericks in Mega Man ZX are in turn controlled by Serpent, and therefore indirectly by Model W as well.
So technically the Pupa can go Maverick. Though it is unlikely. If it goes out of control due to a fault with it's AI then we are all screwed.