VULNERABILITY INTELLIGENCE

CVE-2023-32675

CVSS score3.7 LOW

EPSS probability0.55%

CISA KEVNot currently listed

Published2023-05-19

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

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.

Weakness classification

CWE-670: Always-Incorrect Control Flow Implementation

Primary references

security-advisories@github.com — Patch
security-advisories@github.com — Exploit, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Patch
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Patch, Vendor Advisory