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    CVE-2024-24564

    Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. When using the built-in `extract32(b, start)`, if the `start` index provided has for side effect to update `b`, the byte array to extract `32` bytes from, it could be that some dirty memory is read and returned by `extract32`. This vulnerability is fixed in 0.4.0.

    Published:Feb 26, 2024
    Last Modified:Jan 16, 2025
    EPS:Feb 26, 2024
    EPSS Score:0.00475
    CVSS Score:3.7

    Affected Products

    Vendor
    Vyperlang
    Product
    Vyper

    Exploits

    https://github.com/vyperlang/vyper/security/advisories/GHSA-4hwq-4cpm-8vmxhttps://github.com/vyperlang/vyper/security/advisories/GHSA-4hwq-4cpm-8vmx

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

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    CVE-2025-27104 (CVSS 2.3) — vyper is a Pythonic Smart Contract Language for the EVM. Multiple evaluation of a single expression is possibl…
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    CVE-2025-21607 (CVSS 2.3) — Vyper is a Pythonic Smart Contract Language for the EVM. When the Vyper Compiler uses the precompiles EcRecove…
    CVE-2024-32649 (CVSS 5.3) — Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, us…
    CVE-2024-32648 (CVSS 5.3) — Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. Prior to version 0.3.0, default …
    CVE-2024-32647 (CVSS 5.3) — Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, us…
    CVE-2024-32646 (CVSS 5.3) — Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, us…

    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