Five years after the global financial crisis, the economies of the United States and the eurozone continue to struggle. How will Southeast Asian economies be affected should there be a further deterioration in conditions in the eurozone? In this paper, we present estimates using a Global Vector Autoregression (GVAR) model of the direct impacts of a further shock to the eurozone. We find that although the direct impacts are likely to be muted, it could trigger a much larger adjustment should it lead to a reassessment of risks and asset valuations. This is a real possibility given that vulnerability in the region has increased following massive inflows of capital and build-up of debt, related to successive bouts of quantitative easing in the United States initially, and now Japan. Should this happen, and with the IMF's resources already stretched, there is a pressing need to improve regional financial safety nets, which are currently unworkable, to deal with the fallout.