highReentrancyEVM-Solidity
Putty: Zero strike call options can be systemically used to steal premium from the taker
- Payout
- $0
- Protocol
- Putty
- Disclosed
- Aug 7, 2026
- Source
- code4rena
The Putty protocol was vulnerable to a permanent denial-of-service (DOS) condition when users attempted to exercise zero-strike call options involving specific non-standard ERC20 tokens. If a token reverted on zero-value transfers, the protocol's unconditional …
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References
- https://github.com/code-423n4/2022-06-putty-findings/issues/418
- https://github.com/code-423n4/2022-06-putty-findings
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