Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2018-12115

CVE-2018-12115HIGH

The Node.js Project Node.js — In all versions of Node.js prior to 6.14.4, 8.11.4 and 10.9.0 when used with UCS-2 encoding (recognized by Node.js under the names `'ucs2…

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  N  N  H    7.5   .0809   94.8     —

AFFECTED
  Product  Versions                                                      Fixed
  Node.js  All versions of Node.js prior to 6.14.4, 8.11.4 and 10.9.0 –  —

TIMELINE
  Jun 11  Reserved by nodejs
  Aug 21  Published (CNA: nodejs)
  Oct 15  ENRICHED — CVE-2018-12115 (The Node.js Project Node.js). Received CVSS 7.5 and CPE data from NVD.

CWE-787 · CNA: nodejs · CVSS v3.0 · 8 references · NVD status: Modified

Description

In all versions of Node.js prior to 6.14.4, 8.11.4 and 10.9.0 when used with UCS-2 encoding (recognized by Node.js under the names `'ucs2'`, `'ucs-2'`, `'utf16le'` and `'utf-16le'`), `Buffer#write()` can be abused to write outside of the bounds of a single `Buffer`. Writes that start from the second-to-last position of a buffer cause a miscalculation of the maximum length of the input bytes to be written.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
June 11, 2018	Reserved	Reserved by nodejs
August 21, 2018	Published	Published (CNA: nodejs)
October 15, 2026	ENRICHED	ENRICHED — CVE-2018-12115 (The Node.js Project Node.js). Received CVSS 7.5 and CPE data from NVD.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
The Node.js Project	Node.js	—	All versions of Node.js prior to 6.14.4, 8.11.4 and 10.9.0	—

Weaknesses

CWE-787

References (8)

http://www.securityfocus.com/bid/105127 [Third Party Advisory, VDB Entry]
https://access.redhat.com/errata/RHSA-2018:2552 [Third Party Advisory]
https://access.redhat.com/errata/RHSA-2018:2553 [Third Party Advisory]
https://access.redhat.com/errata/RHSA-2018:2944 [Third Party Advisory]
https://access.redhat.com/errata/RHSA-2018:2949 [Third Party Advisory]
https://access.redhat.com/errata/RHSA-2018:3537 [Third Party Advisory]
https://nodejs.org/en/blog/vulnerability/august-2018-security-releases/ [Vendor Advisory]
https://security.gentoo.org/glsa/202003-48

Authoritative record: CVE-2018-12115 at cve.org

Vendors: the node.js project

Weaknesses: CWE-787

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2018-12115 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.