CVSS 3.1 Score 5.3 of 10 (medium)


Published Sep 27, 2023
Updated: Sep 29, 2023
CWE ID 682


CVE-2023-42460 is a vulnerability that affects the Vyper programming language. The vulnerability is specifically found in the `_abi_decode()` function, which does not validate input when it is nested in an expression. This can result in bounds checking being bypassed and incorrect results being produced. The vulnerability has not yet been fixed, but a fix is expected in the upcoming release 0.3.10. Users are advised to refer to pull request #3626 for updates and remediation steps. The vulnerability has a medium severity rating with a base score of 5.3 and an exploitability score of 1.6. Its impact includes high integrity impact and no confidentiality impact, and it can be exploited over a network without requiring user interaction or elevated privileges. This vulnerability poses a potential danger to organizations using the affected versions of Vyper, as attackers can exploit it to manipulate contract data and potentially cause financial or operational harm.

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