What is the CVSS score of EUVD-2026-19742?

EUVD-2026-19742 has a CVSS 3.1 base score of 6.8 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N. EPSS exploitation probability: 0.0%.

Marginal Smart Contract EUVD-2026-19742

| CVE-2026-4931 MEDIUM

Incorrect Conversion between Numeric Types (CWE-681)

2026-04-07 certcc

Information Disclosure Marginal Smart Contract

6.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.8 MEDIUM

AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

EUVD ID Assigned

Apr 07, 2026 - 16:00 euvd

EUVD-2026-19742

Analysis Generated

Apr 07, 2026 - 16:00 vuln.today

CVE Published

Apr 07, 2026 - 15:22 nvd

MEDIUM 6.8

DescriptionCVE.org

Smart contract Marginal v1 performs unsafe downcast, allowing attackers to settle a large debt position for a negligible asset cost.

AnalysisAI

Marginal v1 smart contract implements an unsafe numeric downcast that enables attackers to settle large debt positions using negligible asset amounts, creating a critical financial manipulation vector in the DeFi protocol. The vulnerability affects Marginal Smart Contract v1 across all deployment instances accessible via the public blockchain network. …

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Vulnerability AssessmentAI

Risk Assessment	The real-world risk of this vulnerability is MODERATE-TO-HIGH despite the low EPSS score of 0.02% (5th percentile). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	An attacker monitors the Marginal protocol's pending settlement transactions and identifies a large debt position (e.g., 1000 ETH) subject to liquidation. By crafting a settlement transaction that downcasts the debt amount, the attacker specifies only 0.01 ETH as the collateral to settle the position-the downcast truncates or wraps the comparison, making the protocol accept the negligible amount. …
Remediation	Patch the unsafe downcast by implementing strict range validation before any numeric type conversion. … Detailed patch versions, workarounds, and compensating controls in full report.