Uranium Finance on BSC suffered a calculation error in its v2 pair swap function. The sanity check validation used an incorrect constant (1,000,000) that was 100x too large compared to actual balance adjustments (10,000), allowing attackers to send minimal value and extract maximum reserves through the swap function.

A loophole in the BSC ecosystem Uranium Finance resulted in the theft of US$50 million in funds. Research analyst Igor Igamberdiev pointed out an error in the Pair contract in Uranium v​​2. Due to calculation errors, this was used to withdraw almost all tokens. The balance of these Pair contracts has also been overstated. After the hack, Uranium Finance shut down, and the victims received no financial compensation. On February 25, 2025, U.S. authorities seized approximately $31 million in cryptocurrency linked to the 2021 Uranium Finance hack. This seizure was the result of joint efforts by the U.S. District Court for the Southern District of New York and Homeland Security Investigations (HSI) San Diego.