Euler Finance Drained of $197M In Flash Loan Exploit

Ramsha Naushad

March 13, 2023

Decentralized finance (DeFi) platform Euler Finance has reportedly suffered an exploit of approximately $196.9 million, per audit platform BlockSec.

The attacker nabbed $8.7M in DAI, $18.5M in WBTC, and a whopping $135.8M in stETH another $33.8 million in Circle's USD stablecoin USDC.

Reports indicate the attacker used flash loans to nab a variety of assets.

Euler Finance is a borrowing and lending platform for cryptocurrencies, allowing users to earn interest for adding various assets to the protocol.

A BlockSec spokesperson told that the root vulnerability is still unknown, but that the attacker used a series of six different flash loans to leverage the attack. 

Others reported that the "donateToReserves" function in the project's smart contracts is the key vulnerability.

Euler tweeted that they are working with security professionals and law enforcement and will release further information as soon as they have it.