Summary

The contract imports the SafeMath library from OpenZeppelin, which is unnecessary in Solidity versions 0.8.0 and above, as they have built-in overflow checks.

Vulnerability Details

The use of SafeMath is redundant in the current Solidity version (0.8.0 and above) because the compiler automatically includes overflow and underflow protection. This import adds unnecessary complexity to the code.

Impact

Code Complexity: Including unnecessary imports can make the code harder to maintain and review.
Gas Costs: Although minimal, the unnecessary use of SafeMath can slightly increase gas costs.

Tools Used

Manual Code Review
Solidity Compiler Version Check

Recommendations

Remove the SafeMath Import**: Since Solidity 0.8.0 and above includes built-in overflow checks, you can safely remove the SafeMath import to simplify the code and potentially reduce gas costs.