Description
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.
Published: 2026-10-21
Score: 8.3 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 27 Oct 2026 23:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 21 Oct 2026 00:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Vyper 0.1.0b4 before 0.3.0 Memory Corruption via Nested Internal Function Calls
First Time appeared Vyperlang
Vyperlang vyper
Weaknesses CWE-787
CPEs cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:*:*:*
Vendors & Products Vyperlang
Vyperlang vyper
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L'}

cvssV4_0

{'score': 8.3, 'vector': '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-27T21:35:03.319Z

Reserved: 2026-10-20T21:52:33.085Z

Link: CVE-2020-37286

cve-icon Vulnrichment

Updated: 2026-10-27T21:34:59.199Z

cve-icon NVD

Status : Deferred

Published: 2026-10-21T01:17:18.010

Modified: 2026-10-27T22:17:07.217

Link: CVE-2020-37286

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-21T18:45:06Z

Weaknesses