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    CVE-2023-42460

    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.

    Published:Sep 26, 2023
    Last Modified:Nov 21, 2024
    EPS:Sep 26, 2023
    EPSS Score:0.00048
    CVSS Score:5.3

    Affected Products

    Vendor
    Vyperlang
    Product
    Vyper

    Exploits

    https://github.com/vyperlang/vyper/security/advisories/GHSA-cx2q-hfxr-rj97https://github.com/vyperlang/vyper/security/advisories/GHSA-cx2q-hfxr-rj97

    Common Weakness Enumeration

    CWE-682 Incorrect Calculation

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-128 Integer Attacks
    CAPEC-129 Pointer Manipulation

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High