Uefa has given three Ukraine cities until the end of November to prove they are capable of staging Euro 2012 games, BBC reported.
Ukraine is co-hosting the tournament with Poland but so far only its capital Kiev has been deemed a suitable venue.
Lviv, Donetsk and Kharkiv have until 30 November to prove their suitability. Warsaw, Poznan, Wroclaw and Gdansk have been confirmed as the Polish venues.
"There are huge infrastructure problems to be resolved in Ukraine," Uefa president Michel Platini explained.
The Olympic Stadium in Kiev, which is still being built, had been touted as the venue for the final, but the infrastructure problems in Ukraine have led Platini to consider other options.
"Kiev is okay according to Uefa's criteria for all matches leading up to the semi-final," he said.
"But the final match will be held in Kiev only if specific conditions with regard to the stadium, airport infrastructure, regional transport and accommodation are met by 30 November.
"If it's not Kiev, it could be Warsaw."
Two other cities in Ukraine - Dnipropetrovsk and Odessa - were told they would not be retained as sites as they had failed to meet the tournament requirements.
Poland and Ukraine were announced as co-hosts by Uefa in April, 2007.
The tournament, the last to be contested by 16 teams before 24 finalists take part from 2016, is scheduled to begin on 9 June and end on 1 July 2012.
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