Earlier this month the striker's agent said his player was happy with Napoli, but while Cavani has echoed these sentiments he went on to say that "football is a business."
Manchester City boss Roberto Mancini admitted this season that Cavani is a striker he admires, while Chelsea have also been credited with an interest in the Uruguayan international.
Cavani is currently the Serie 'A' top scorer, and he's bagged 27 goals in 33 games in all competitions this term.
And speaking to Uruguayan newspaper El Observador, the Napoli forward conceded that his future is uncertain.
Cavani said: "Football is a business. In Napoli I am fine as I have the love of the fans, but in football you never know where you play in the future.
"Much also depends on the club and the decisions of the president."
Napoli club president Aurelio De Laurentiis slapped a £60m (€70m) price tag on the forward this month, as he looked to warn off interest in his star player.
But Chelsea and City are among a select group of clubs with the finances to pay that kind of fee. Barcelona and Real Madrid have also been mentioned.
City sold Mario Balotelli to AC Milan in January, while Edin Dzeko has been linked with a move to Germany, possibly freeing up space for a new striker this summer.
Chelsea brought Demba Ba to the club two months ago, but like Fernando Torres, the Senegalese international has struggled to find the net at Stamford Bridge.
Napoli currently sit second in the Serie 'A' table, and are pushing for a Champions League place next season.