CVE-2020-37286Published

Vyper 0.1.0b4 before 0.3.0 Memory Corruption via Nested Internal Function Calls

Exact source revision recorded 27 Oct 2026 22:45:55 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2020-37286

Published

Vyper from 0.1.0b4 before 0.3.0 contains a memory corruption vulnerability caused by an incorrect stack tip pointer when internal function calls appear inside tuples or nested calls. Contracts using such calls as tuple elements, call arguments, or builtin arguments like concat or ecrecover can return corrupted values or pass wrong arguments to external calls.

Source published: 21 Oct 2026 00:36:15 UTC
Source modified: 27 Oct 2026 21:35:03 UTC
Observed here: 27 Oct 2026 22:45:55 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 4.0 · 8.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N

CVSS 3.1 · 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L