CVE-2018-12115

Name: CVE-2018-12115
Creator: NVD / NIST
Published: 2018-08-21T12:29:00.21+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 8.03%

Last modified Jun 17, 2026

CVE-2018-12115 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 8.03% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

8.03%

94.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Nodejs	Node.Js	< 6.14.4
Nodejs	Node.Js	>= 8.0.0, < 8.11.4
Nodejs	Node.Js	>= 10.0.0, < 10.9.0
Redhat	Openshift Container Platform	3.11

References

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

Timeline

Published: Aug 21, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-12115?

How severe is CVE-2018-12115?

Severity scoring for CVE-2018-12115 is pending analysis. The EPSS model estimates a 8.03% probability of exploitation in the next 30 days.

How do I fix CVE-2018-12115?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-12115?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST