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    CVE-2022-29255

    Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions prior to 0.3.4 when a calling an external contract with no return value, the contract address (including side effects) could be evaluated twice. This may result in incorrect outcomes for contracts. This issue has been addressed in v0.3.4.

    Published:Jun 6, 2022
    Last Modified:Apr 22, 2025
    EPS:Jun 6, 2022
    EPSS Score:0.00344
    CVSS Score:8.2

    Affected Products

    Vendor
    Vyperlang
    Product
    Vyper

    Exploits

    https://github.com/vyperlang/vyper/security/advisories/GHSA-4v9q-cgpw-cf38https://github.com/vyperlang/vyper/security/advisories/GHSA-4v9q-cgpw-cf38

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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…
    CVE-2025-27105 (CVSS 2.3) — vyper is a Pythonic Smart Contract Language for the EVM. Vyper handles AugAssign statements by first caching t…
    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