Adriano has slipped down the pecking order at the San Siro
Adriano, 25, has also been linked with Manchester City, while Serie A side Lazio have also stated their interest in landing the Brazilian.
A statement by the Hammers said: "We are investigating the possibility of a loan deal at this stage."
But Curbishley said: "I don't know too much about it to be fair.
"I don't know if it is talk to stir things up, if you like, we will have to see. I just think it is something that has cropped up.
"Is it speculation or is there something in it? I don't know."
Adriano has slipped down the pecking order at Inter and fellow Serie A side Lazio would take him depending on his attitude.
The Brazilian has scored 25 goals in 37 games for his country but has suffered a loss of form amid a succession of injuries and doubts over his commitment.
606: DEBATE Whatever they say about his fitness and commitment, he is one hell of a player
nph
"Adriano is an important player," said Lazio coach Delio Rossi. "I wish he would come to Lazio. But, if he comes, he should come with the right spirit."
Arsenal boss Arsene Wenger has revealed he rejected a chance to take Adriano on loan.
Part of Wenger's refusal to do business with Inter was because they wanted an unnamed Arsenal player on loan as part of the deal.
But the Gunners boss says he feels that area of his squad is strong enough, explaining: "We do not need him and it was an easy decision to make because we're not out there to sign another striker.
"The agreement was for a loan. Adriano has qualities we don't need. They wanted to give us a player but wanted one back in return.
"I won't say who it was. I didn't want to lose the player they requested. I didn't necessarily think Adriano would upset the balance of the squad."
The Premier League's Brazilian numbers could be getting larger as Manchester City and West Ham joined Chelsea in trying to sign a Brazilian superstar.

Yesterday, Chelsea captain John Terry urged Roman Abramovich to buy Ronaldinho from Barcelona, while Manchester City were preparing to out-bid West Ham with a £12m bid for Inter Milan's Adriano.

On Tuesday, it was reported that Roman Abromovich had met twice with Ronaldinho's brother, Roberto de Assis Moreira, and given him a trip on his private jet and hosted him at Lanesborough Hotel in Mayfair, London. Abramovich held the second meeting with Moreira at his Knightsbridge house on Saturday morning and is understood to have put an offer to him that would make Ronaldinho the highest paid player in Europe.

Sven Goran Eriksson, who held talks with Adriano's representatives on Tuesday, is aware the player does not want to go on loan and City are trying to stretch their budget to give Adriano wages of around £70,000 a week.

Adriano said: "I don't want to go out on loan again. I've already been at Parma, and at that time it was right for my career but now I really must leave for good and that's that." 

A statement by West Ham said: "We are investigating the possibility of a loan deal at this stage."

Adriano has slipped down the pecking order at Inter and fellow Serie A side Lazio would take him depending on his attitude.