VULNERABILITY INTELLIGENCE

CVE-2022-29255

CVSS score8.2 HIGH

EPSS probability1.35%

CISA KEVNot currently listed

Published2022-06-09

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L

Description

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.

Weakness classification

security-advisories@github.com: CWE-670
nvd@nist.gov: CWE-670

Primary references

security-advisories@github.com — Patch, Third Party Advisory
security-advisories@github.com — Exploit, Mitigation, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Mitigation, Third Party Advisory