The Cambridge Colleges will only, as a matter of principle, consider applications to Cambridge from students enrolled on degree courses at other UK universities in very exceptional circumstances.
Any application to study at Cambridge would need strong support from your course director or other academic tutor at your current university. A reference/letter of recommendation from that person to the Cambridge College would be required, and only then could a Cambridge College consider an application.
All such applications would still be subject to the same academic assessment as any other application to the University. Please contact a College admissions office for advice.