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Published: 09/06/2022 Updated: 02/08/2023

CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10

CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9

VMScore: 445

Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions before 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.

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vyperlang vyper

CWE-670 https://github.com/vyperlang/vyper/security/advisories/GHSA-4v9q-cgpw-cf38 https://github.com/vyperlang/vyper/commit/6b4d8ff185de071252feaa1c319712b2d6577f8d https://nvd.nist.gov

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CVE-2022-29255

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