Is CVE-2018-12122 being actively exploited?

CVE-2018-12122 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2018-12122?

CVE-2018-12122 has a CVSS 3.1 base score of 7.5 (HIGH).

CVE-2018-12122

HIGH · CVSS 7.5EPSS 41.3%EU EUVD

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.

Key facts

CVSS score: 7.5 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-400
EPSS score: 41.3% (99th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2018-4100)
Published: November 28, 2018
NVD last modified: October 8, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2018-4100 in the EU Vulnerability Database. Last updated in EUVD on October 8, 2026.

View on the EU Vulnerability Database

Affected products

nodejs / node.js
nodejs / node.js
suse / suse enterprise storage
suse / suse linux enterprise server
suse / suse linux enterprise server
suse / suse openstack cloud
suse / suse openstack cloud

Certified products that may be affected

4 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

SUSE Linux Enterprise Server Version 15 SP2 - SUSE LLC - Common Criteria BSI-DSZ-CC-1168-2021 - active
SUSE Linux Enterprise Server 15 SP2 - SUSE Linux Products Gmbh - Common Criteria BSI-DSZ-CC-1151-2021 - archived
SUSE Linux Enterprise Server 12 SP2 - NSS Cryptographic Module - SUSE, LLC - FIPS 140 3216 - historical
SUSE Linux Enterprise Server Version 12 - SUSE LLC - Common Criteria BSI-DSZ-CC-0962-2016 - archived

References

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

Last updated October 10, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain