Vulnerability in Vyperlang Vyper
CVE-2020-37288
Vyper from 0.1.0b10 before 0.2.3 generates incorrect code for a return statement inside a for loop in an internal function called two or more internal calls deep, producing an invalid jump destination (stack underflow). Affected contracts revert such calls unnecessarily, which in limited circumstances could enable denial of service against public contracts.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/vyperlang/vyper/security/advisories/GHSA-vg88-3v92-rjx2 (vendor-advisory)
- www.vulncheck.com/advisories/vyper-0.1-0b10-before-0.2.3-invalid-jump-destinati… (third-party-advisory)
Frequently asked questions
- What is CVE-2020-37288?
- CVE-2020-37288 is a low-severity vulnerability in Vyperlang Vyper, classified under Always-Incorrect Control Flow Implementation. CVSS score: 3.7/10. Published 2026-10-21.
- How severe is CVE-2020-37288?
- Low severity. CVSS v3 base score is 3.7 out of 10.