Curry is reportedly earmarked for Anderson Cooper's coveted 8pm slot at the rival TV station by her former Today show boss, Jeff Zucker, who will take over as president of CNN Worldwide in February.
If she quits without the green light from NBC, a clause in her contract bans her from working for any other news outlet.
'Ann wants out of her contract, big time,' a source close to the situation told RadarOnline. 'She has formally asked her attorney to explore exit options from the network.'
But the website claims NBC bosses are unwilling to release Curry without a fight.
'If Ann were to just quit, there is a non-compete clause, which would prohibit her from working for another news outlet for two years,' the insider said.
Zucker, previously executive producer at the Today show and one-time head of NBC Universal, wants to put Curry in the prime-time 8pm slot currently occupied by Anderson Cooper, RadarOnline reported.
Curry's lawyers are arguing that her dramatic demotion from Today in April was in fact a breach of her contract terms by NBC.
'Ann's lawyer feels that there is a very strong case to be made that NBC has breached terms of the deal because Curry was demoted from TodaToday is set to finish the year trailing its rival Good Morning America. Curry was dumped as co-anchor of the NBC morning show after Today lost its top spot, as bosses thought a fresh face may bring back viewers.