CVE-2014-4167

The L3-agent in OpenStack Neutron before 2013.2.4, 2014.x before 2014.1.2, and Juno before Juno-2 allows remote authenticated users to cause a denial of service (IPv4 address attachment outage) by attaching an IPv6 private subnet to a L3 router.

Published: 2014-07-11 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-4167 is rated Moderate Risk (40.8/100): CVSS Low severity, with medium exploitation likelihood (EPSS 1.66%). EPSS rose +1.10% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2014-4167

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.56% 1.66% +1.10%
2 2025-03-30 1.07% 0.56% -0.52%
3 2025-03-29 — 1.07% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-4167

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.5 2.0 LOW
AV:N/AC:M/Au:S/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 6.8 2.9 [email protected]

Weakness enumeration for CVE-2014-4167

OS Trackers for CVE-2014-4167

vendor priority summary link
debian not yet assigned CVE-2014-4167 not yet assigned priority: Debian including 1 source packages (neutron), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2014-4167
redhat medium — https://access.redhat.com/security/cve/CVE-2014-4167
ubuntu medium CVE-2014-4167 medium priority: Ubuntu including 1 source packages (neutron), 5 status rows across 5 suites (lucid, precise, saucy, trusty, upstream): DNE 2, released 2, pending 1. https://ubuntu.com/security/CVE-2014-4167

Affected software / configurations for CVE-2014-4167

Vendor Product Version Raw CPE
openstack neutron >= 2011.1, <= 2013.2.3 cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
openstack neutron 2014.1 cpe:2.3:a:openstack:neutron:2014.1:*:*:*:*:*:*:*
openstack neutron 2014.1.1 cpe:2.3:a:openstack:neutron:2014.1.1:*:*:*:*:*:*:*
canonical ubuntu_linux 13.10 cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:*
canonical ubuntu_linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*

References for CVE-2014-4167

URL Tags
http://seclists.org/oss-sec/2014/q2/572 Mailing List Third Party Advisory
http://secunia.com/advisories/59533 Permissions Required
http://www.ubuntu.com/usn/USN-2255-1 Third Party Advisory
https://bugs.launchpad.net/neutron/+bug/1309195 Issue Tracking Vendor Advisory
cvelogic Threat Intelligence