Risk of silent overflow in rngComplete rewards cast

Lines of code Vulnerability details Impact The rngComplete function uses the rewards function from the RewardLib library to calculates the rewards that should be given, the rewards returned by the rewards function are of type uint256 but before proceeding to the reward transfer the call to...

Unsafe downcast can lead to silent Overflow that causes accounting issues which can be exploited.

Lines of code Vulnerability details Impact In the ARCDVestingVault.sol, there are instances of Unsafe downcasting where if the amount is greater than uint128 the amount will Overflow but silently where the transaction won't revert causing the stored amount to be smaller than the actual amount tha...

Downcast can lead to overflow and impact the functionality to remove an asset in NFTFloorOracle

Lines of code Vulnerability details Impact When adding a new asset, the index for the last asset will be saved and downcasted on L284. If the number of assets is bigger than 256, the downcasting operation will lead to a silent overflow. Consequentially, the incorrect index will be stored. This ca...

Unsafe downcast

Lines of code Vulnerability details Impact It's possible to generate silent overflows when downcasting. E.g. if the value if bigger than the type being cast, it will overflow starting from zero. Proof of concept For the Price.sol constructor, if observationFrequency is a small value and...

Upgraded Q -> M from 104 [1656258768065]

Judge has assessed an item in Issue 104 as Medium risk. The relevant finding follows: L01: Silent overflow of fCashAmount Line References Description If a fCashAmount value that is greater than uint88 is passed into the mint function, downcasting it to uint88 will silently overflow. Recommended...