The survey of 488 manufacturers across the UK was carried out between 20 August and 10 September.
It revealed that output growth remained solid in the last quarter and is expected to strengthen further in the coming three months.
But firms saw total order books fall below “normal” levels, and export order books worsened significantly, and are now at their weakest since January 2013.
Stocks adequacy fell back below average and inflation expectations remain muted, with manufacturers once again expecting flat output prices over the next three months.
Katja Hall, CBI deputy director-general, said: “Against a backdrop of acute political uncertainty at home and abroad, exports orders for UK manufacturers are faltering, which is disappointing.
“However, it’s encouraging that output growth has remained solid and firms expect production to rise strongly in the next quarter.”