Vietcombank sold the greenback 0.23% higher at VND25,760. On the black market the dollar plunged 0.77% to VND25,850.
Globally the dollar found support following a bumpy few days and held firm in Tuesday's Asia session while traders waited for U.S. inflation data, which could push it higher if it bolsters rate hike bets, Reuters reported.
The trade and sentiment-sensitive Australian dollar rose by nearly 1% through Monday to sit at $0.6921 early on Tuesday and the New Zealand dollar rose even further to trade at $0.5624, with both steady in morning Asia trade.
The euro jumped 0.7% overnight to $1.1220, reversing a Friday fall when strong US jobs data lifted the dollar and interest rate expectations, and putting the euro/dollar pair roughly into the middle of a range it has held for a month.