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CVE-2018-12122

47
FAUCET Score

CVE-2018-12122 describes a Slowloris HTTP Denial of Service vulnerability affecting Node.js versions prior to 6.15.0, 8.14.0, 10.14.0, and 11.3.0, impacting various Node.js deployments including those on SUSE platforms. This high-severity vulnerability (CVSS 7.5) allows an unauthenticated attacker to exhaust server resources by maintaining slow HTTP/HTTPS connections, leading to a complete denial of service. While no active exploitation, public exploit code, or significant community discussion has been observed, the potential for a high impact remains.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.0.0, < 6.15.1CPE matchmatch criteria
cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*
>= 8.0.0, < 8.14.0CPE matchmatch criteria
cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*
>= 10.0.0, < 10.14.0CPE matchmatch criteria
cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*
>= 11.0.0, < 11.3.0CPE matchmatch criteria
cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*
4CPE matchmatch criteria
cpe:2.3:a:suse:suse_enterprise_storage:4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
41.29%
Probability of exploitation in next 30 days
EPSS Percentile
98.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.4129 is in the 97th percentile among its peer group of 51,455 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (19)

microsoftpatch availablevia msrc
Product: 16918-16820Fixed in: 14.17.2-1
microsoftpatch availablevia msrc
Product: cm1 nodejs 14.17.2-1 on CBL Mariner 1.0Fixed in: 14.17.2-1
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-nodejs8-nodejs-0:8.16.0-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-nodejs10-0:3.2-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-nodejs10-nodejs-0:10.16.3-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSFixed in: rh-nodejs8-nodejs-0:8.16.0-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUSFixed in: rh-nodejs8-nodejs-0:8.16.0-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUSFixed in: rh-nodejs10-0:3.2-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUSFixed in: rh-nodejs10-nodejs-0:10.16.3-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSFixed in: rh-nodejs8-nodejs-0:8.16.0-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSFixed in: rh-nodejs10-0:3.2-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSFixed in: rh-nodejs10-nodejs-0:10.16.3-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUSFixed in: rh-nodejs10-0:3.2-3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUSFixed in: rh-nodejs10-nodejs-0:10.16.3-3.el7
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Container Platform 3.10Fixed in: nodejs
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Container Platform 3.6Fixed in: nodejs
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Container Platform 3.9Fixed in: nodejs
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-nodejs4-nodejs
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-nodejs6-nodejs

Vendor Advisories (2)

redhatCVE-2018-12122Low

nodejs: Slowloris HTTP Denial of Service

Nov 27, 2018
microsoft2018-Nov/CVE-2018-12122Important

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.

Nov 13, 2018

References

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