CVE-2023-32675

LOW

vyperlang/vyper < 0.3.8 - Incorrect Fund Transfer via Nonpayable Default Function

Title source: llm
STIX 2.1

Description

Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. In contracts with more than one regular nonpayable function, it is possible to send funds to the default function, even if the default function is marked `nonpayable`. This applies to contracts compiled with vyper versions prior to 0.3.8. This issue was fixed by the removal of the global `calldatasize` check in commit `02339dfda`. Users are advised to upgrade to version 0.3.8. Users unable to upgrade should avoid use of nonpayable default functions.

References (2)

Core 2

Scores

CVSS v3 3.7
EPSS 0.0055
EPSS Percentile 41.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-670
Status published
Products (2)
pypi/vyper 0 - 0.3.8PyPI
vyperlang/vyper < 0.3.8
Published May 19, 2023
Tracked Since Feb 18, 2026