What is the CVSS score of CVE-2025-57329?

CVE-2025-57329 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.1%.

Which versions of Prototype Pollution are affected by CVE-2025-57329?

Organizations using the attachToObject function of web3-core-method face notable risk from CVE-2025-57329, a prototype pollution vulnerability rated CVSS 7.5.

Is there a public PoC exploit available for CVE-2025-57329?

Yes, a public proof-of-concept exploit is available for CVE-2025-57329. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-57329?

Within 30 days: Identify all affected systems running the attachToObject function of web3-core-method and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Prototype Pollution CVE-2025-57329

HIGH

Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution) (CWE-1321)

2025-09-24 cve@mitre.org

Denial Of Service Prototype Pollution Web3 Core Method

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:14 vuln.today

PoC Detected

Oct 20, 2025 - 16:30 vuln.today

Public exploit code

CVE Published

Sep 24, 2025 - 20:15 nvd

HIGH 7.5

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

1,788 npm packages depend on web3-core-method (69 direct, 1,721 indirect)

Ecosystem-wide dependent count for version 1.10.3.

DescriptionCVE.org

web3-core-method is a package designed to creates the methods on the web3 modules. A Prototype Pollution vulnerability in the attachToObject function of web3-core-method version 1.10.4 and before allows attackers to inject properties on Object.prototype via supplying a crafted payload, causing denial of service (DoS) as the minimum consequence.

AnalysisAI

web3-core-method is a package designed to creates the methods on the web3 modules. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution) (CWE-1321), which allows attackers to modify object prototypes to inject properties affecting application logic. web3-core-method is a package designed to creates the methods on the web3 modules. A Prototype Pollution vulnerability in the attachToObject function of web3-core-method version 1.10.4 and before allows attackers to inject properties on Object.prototype via supplying a crafted payload, causing denial of service (DoS) as the minimum consequence. Affected products include: Web3Js Web3-Core-Method. Version information: version 1.10.4.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Freeze prototypes, validate object keys, avoid recursive merging of untrusted data.