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CVE-2018-14635

24
FAUCET Score

CVE-2018-14635 describes a vulnerability in OpenStack Neutron's Linux bridge ml2 driver, affecting versions prior to 13.0.0.0b2, 12.0.3, and 11.0.5. Non-privileged tenants can bypass IP address validation by creating and attaching ports without specifying an IP. This medium-severity vulnerability (CVSS 6.5) could lead to a denial of service if a conflicting IP address is subsequently assigned, impacting network availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
10CPE matchmatch criteria
cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:*
12CPE matchmatch criteria
cpe:2.3:a:redhat:openstack:12:*:*:*:*:*:*:*
13CPE matchmatch criteria
cpe:2.3:a:redhat:openstack:13:*:*:*:*:*:*:*
>= 11.0.0, <= 11.0.5CPE matchmatch criteria
cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
>= 12.0.0, <= 12.0.3CPE matchmatch criteria
cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.53%
Probability of exploitation in next 30 days
EPSS Percentile
83.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0253 is in the 94th percentile among its peer group of 21,957 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (10)

pippatch availablevia ghsa
Product: neutronFixed in: 13.0.0.0b2
pippatch availablevia ghsa
Product: neutronFixed in: 11.0.6
pippatch availablevia ghsa
Product: neutronFixed in: 12.0.4
redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 10.0 (Newton)Fixed in: openstack-neutron-1:9.4.1-28.el7ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 12.0 (Pike)Fixed in: openstack-neutron-1:11.0.4-6.el7ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 13.0 (Queens)Fixed in: openstack-neutron-1:12.0.3-5.el7ost
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)Fixed in: openstack-neutron
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 8 (Liberty)Fixed in: openstack-neutron
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 9 (Mitaka)Fixed in: openstack-neutron

Vendor Advisories (2)

pipGHSA-x634-34m9-96mphigh

OpensStack Neutron Denial of Service Vulnerability

May 13, 2022
redhatCVE-2018-14635Moderate

openstack-neutron: A router interface out of subnet IP range results in a denial of service

Mar 21, 2018

References

access.redhat.com / errata/RHSA-2018:2710
Third Party Advisory
access.redhat.com / errata/RHSA-2018:2715
Third Party Advisory
access.redhat.com / errata/RHSA-2018:2721
Third Party Advisory
access.redhat.com / errata/RHSA-2018:3792
Third Party Advisory
bugs.launchpad.net / neutron/+bug/1757482
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
git.openstack.org / cgit/openstack/neutron/commit
PatchVendor Advisory