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Vulnerability record · CVE-2018-7167 · published 13 June 2018

CVE-2018-7167: Nodejs node.js memory buffer overflow vulnerability

Nodejs · Node.Js

Calling Buffer.fill() or Buffer.alloc() with some parameters can lead to a hang which could result in a Denial of Service. In order to address this vulnerability, the implementations of Buffer.alloc() and Buffer.fill() were updated so that they zero fill instead of hanging in these cases. All versions of Node.js 6.x (LTS "Boron"), 8.x (LTS "Carbon"), and 9.x are vulnerable. All versions of Node.js 10.x (Current) are NOT vulnerable.

7.5 CVSS 3.1 High EPSS 7.1% · top 6.0% CWE-119 · Memory buffer overflow
7.5CVSS 3.1 base score, v2 5.0
7.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

Calling Buffer.fill() or Buffer.alloc() with some parameters can lead to a hang which could result in a Denial of Service. In order to address this vulnerability, the implementations of Buffer.alloc() and Buffer.fill() were updated so that they zero fill instead of hanging in these cases. All versions of Node.js 6.x (LTS "Boron"), 8.x (LTS "Carbon"), and 9.x are vulnerable. All versions of Node.js 10.x (Current) are NOT vulnerable.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/106363 Third Party AdvisoryVDB Entry
https://nodejs.org/en/blog/vulnerability/june-2018-security-releases/ Vendor Advisory
https://security.gentoo.org/glsa/202003-48 Third Party Advisory
http://www.securityfocus.com/bid/106363 Third Party AdvisoryVDB Entry
https://nodejs.org/en/blog/vulnerability/june-2018-security-releases/ Vendor Advisory
https://security.gentoo.org/glsa/202003-48 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2018-7167), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.