CVSS 3.1 Score 8.1 of 10 (high)


Published Sep 18, 2023
Updated: Sep 22, 2023
CWE ID 787


CVE-2023-42443 is a vulnerability that affects the Vyper Pythonic Smart Contract Language for the Ethereum Virtual Machine (EVM) in version 0.3.9 and earlier. Under certain conditions, the builtins `raw_call`, `create_from_blueprint`, and `create_copy_of` can lead to memory corruption. This can result in incorrect calldata or deploying incorrect bytecode. The corruption occurs when complex expressions are used for the `value` or `gas` arguments of `raw_call` and `create_copy_of`, or when no constructor parameters are passed to `create_from_blueprint`. This vulnerability poses a high risk as it can be exploited remotely without requiring any privileges or user interaction, impacting both confidentiality and integrity of an organization's assets.


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