Vulnerability in Vyperlang Vyper
CVE-2023-32059
Vyper is a Pythonic smart contract language for the Ethereum virtual machine. Prior to version 0.3.8, internal calls with default arguments are compiled incorrectly. Depending on the number of arguments provided in the call, the defaults are added not right-to-left, but left-to-right. If the types are incompatible, typechecking is bypassed. The ability to pass kwargs to internal functions is an undocumented feature that is not well known about. The issue is patched in version 0.3.8.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.007 (53.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Vyperlang Vyper — versions < 0.3.8
Weakness classification (CWE)
References
- github.com/vyperlang/vyper/security/advisories/GHSA-ph9x-4vc9-m39g (Exploit, Vendor Advisory)
- github.com/vyperlang/vyper/commit/c3e68c302aa6e1429946473769dd1232145822ac (Patch)
Frequently asked questions
- What is CVE-2023-32059?
- CVE-2023-32059 is a high-severity vulnerability in Vyperlang Vyper, classified under CWE-683. CVSS score: 7.5/10. Published 2023-05-11.
- How severe is CVE-2023-32059?
- High severity. CVSS v3 base score is 7.5 out of 10.