do csu east bay and fullerton offer undeclared if you dont get in your intended major?
or impacted major
According to the impacted major matrix, Fullerton offers undeclared but it is impacted. East bay does not offer undeclared, but East Bay is not an impacted campus so you should get into your first choice major. With CSU Fullerton, it is hard to tell since all majors are impacted.
https://www.calstate.edu/sas/documents/impactedprogramsmatrix.pdf