CVE-2018-12122

Name: CVE-2018-12122
Creator: NVD / NIST
Published: 2018-11-28T17:29:00.37+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 41.29%

Last modified Jun 17, 2026

CVE-2018-12122 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Node.js: All versions prior to Node.js 6.15.0, 8.14.0, 10.14.0 and 11.3.0: Slowloris HTTP Denial of Service: An attacker can cause a Denial of Service (DoS) by sending headers very slowly keeping HTTP or HTTPS connections and associated resources alive for a long period of time.. EPSS estimates a 41.29% chance of exploitation in the next 30 days.

Description

Node.js: All versions prior to Node.js 6.15.0, 8.14.0, 10.14.0 and 11.3.0: Slowloris HTTP Denial of Service: An attacker can cause a Denial of Service (DoS) by sending headers very slowly keeping HTTP or HTTPS connections and associated resources alive for a long period of time.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

41.29%

98.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Nodejs	Node.Js	>= 6.0.0, < 6.15.1
Nodejs	Node.Js	>= 8.0.0, < 8.14.0
Nodejs	Node.Js	>= 10.0.0, < 10.14.0
Nodejs	Node.Js	>= 11.0.0, < 11.3.0
Suse	Suse Enterprise Storage	4
Suse	Suse Linux Enterprise Server	12
Suse	Suse Linux Enterprise Server	15
Suse	Suse Openstack Cloud	7
Suse	Suse Openstack Cloud	8

References

http://www.securityfocus.com/bid/106043Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2019:1821Third Party Advisory
https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/Patch, Vendor Advisory
https://security.gentoo.org/glsa/202003-48Third Party Advisory
http://www.securityfocus.com/bid/106043Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2019:1821Third Party Advisory
https://nodejs.org/en/blog/vulnerability/november-2018-security-releases/Patch, Vendor Advisory
https://security.gentoo.org/glsa/202003-48Third Party Advisory
https://security.netapp.com/advisory/ntap-20241213-0009/

Timeline

Published: Nov 28, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-12122?

How severe is CVE-2018-12122?

CVE-2018-12122 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 41.29% probability of exploitation in the next 30 days.

How do I fix CVE-2018-12122?

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-2018-12122?

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

Scan your code now

Source: NVD / NIST