VULNERABILITY INTELLIGENCE

CVE-2023-42460

CVSS score5.3 MEDIUM
EPSS probability0.67%
CISA KEVNot currently listed
Published2023-09-27
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

Description

Vyper is a Pythonic Smart Contract Language for the EVM. The `_abi_decode()` function does not validate input when it is nested in an expression. Uses of `_abi_decode()` can be constructed which allow for bounds checking to be bypassed resulting in incorrect results. This issue has not yet been fixed, but a fix is expected in release `0.3.10`. Users are advised to reference pull request #3626.

Weakness classification

  • security-advisories@github.com: CWE-682

Primary references