Mr. Zardari and key leaders of his Pakistan People's Party (PPP) met in Islamabad to discuss the impact on his government.
The Supreme Court on Wednesday threw out a decree that offered amnesty protection to more than 8,000 people, including Mr. Zardari and his top allies.
As president, Mr. Zardari is still immune from prosecution, but members of the opposition party are calling for his resignation.
Pakistan's anti-corruption body, the National Accountability Bureau, has placed about 250 officials on a travel ban list aimed at preventing suspects from fleeing the country.
The list includes four Cabinet members, including two from the ruling party and two from the minor MQM party.
At least 52 politicians have been summoned to appear before corruption courts.
Some information for this report was provided by AP, AFP and Reuters.
