What is CVE-2022-29255?

CVE-2022-29255 is a high-severity vulnerability in Vyperlang Vyper, classified under Always-Incorrect Control Flow Implementation. CVSS score: 8.2/10. Published 2022-06-06.

How severe is CVE-2022-29255?

High severity. CVSS v3 base score is 8.2 out of 10.

Vulnerability in Vyperlang Vyper

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…

EPSS: 0.003 (53.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L.

Affected products

Vyperlang Vyper — versions < 0.3.4

Weakness classification (CWE)

CWE-670 — Always-Incorrect Control Flow Implementation

References

github.com/vyperlang/vyper/security/advisories/GHSA-4v9q-cgpw-cf38 (x_refsource_CONFIRM)
github.com/vyperlang/vyper/commit/6b4d8ff185de071252feaa1c319712b2d6577f8d (x_refsource_MISC)

Frequently asked questions

What is CVE-2022-29255?: CVE-2022-29255 is a high-severity vulnerability in Vyperlang Vyper, classified under Always-Incorrect Control Flow Implementation. CVSS score: 8.2/10. Published 2022-06-06.
How severe is CVE-2022-29255?: High severity. CVSS v3 base score is 8.2 out of 10.