Leaderboard
1154All-time rank
BN
Bankroll Network
Jun 19, 2025
$65K
Lost
$65K
Recovered
$0
Net loss
$65K
Unrecovered0% recovered
On June 19, 2025, old BankrollStack contracts containing an integer underflow vulnerability in the sell() function were exploited. Attackers manipulated dividend accounting through lingering token approvals, draining funds from users who had previously interacted with the abandoned contracts.
How the exploit worked
View reproducible PoCIncorrect dividends calculation.
Lost: 24.5 WBNB
Source: DeFiHackLabs (SunWeb3Sec)
- Target
- DeFi
- Classification
- Token & Share Accounting
- Technique
- Arithmetic Error
- Attribution
- Unknown
- Chains
Binance Smart Chain
Event timeline
- Jun 19, 2025Exploit executed — $65K drained via arithmetic error
- Attributed to Unknown
- Recovery status Unrecovered 0%
Data credits
- DefiLlamaIncident record, amounts, chains, recovery data and logo
- DeFiHackLabsExploit analysis and reproducible proof-of-concept (by SunWeb3Sec)