CVE-2018-12115
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (7.78%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 7.78% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- nodejs/node.js · redhat/openshift container platform
- Source
- cve-request@iojs.org
EPSS 7.8% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.