Summary

Need to check for zero value transfer of ERC20 tokens.

Vulnerability Details

Some tokens can revert if the amount being transferred is 0. So, it's important to check whether the amount being transferred is more than 0. More info - https://github.com/d-xo/weird-erc20#revert-on-zero-value-transfers

Impact

Transactions revert on zero-value transfers for certain ERC20 tokens.

Tools Used

Manual review

Recommendations

Add a sanity check to see whether the amount is greater than 0 before transferring it.