CVE-2020-37288

Vyper 0.1.0b10 before 0.2.3 Invalid Jump Destination via Return in Nested Loops

LOW
3.7
CVSS Score
Published: October 21, 2026 at 12:36 AM UTC
Updated: October 22, 2026 at 05:39 PM UTC
1 product affected across 1 vendorVyper

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Severity
LOW3.7
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0.1.0b10
Vendor states this is fixed in 0.2.3 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.7LOWVulnCheck
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-670

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