mediumInteger overflow/underflowEVM-Solidity
Putty: Options with a small strike price will round down to 0 and can prevent assets to be withdrawn
- Payout
- $0
- Protocol
- Putty
- Disclosed
- Aug 7, 2026
- Source
- code4rena
The Putty protocol contains a vulnerability where certain ERC-20 tokens, which revert on zero-value transfers, can cause a Denial-of-Service during asset withdrawals. The issue occurs because the protocol's fee calculation uses integer division, which can roun …
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References
- https://github.com/code-423n4/2022-06-putty-findings/issues/283
- https://github.com/code-423n4/2022-06-putty-findings
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