No exploitation reportedFix available

CVE-2018-14635

Q: Is CVE-2018-14635 actively exploited?

Active exploitation of CVE-2018-14635 has not been confirmed. Its EPSS score was 2.5% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2018-14635?

CVE-2018-14635 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

No exploitation reported by the sources we read.

Published2018-09-10
WeaknessCWE-20

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

When using the Linux bridge ml2 driver, non-privileged tenants are able to create and attach ports without specifying an IP address, bypassing IP address validation. A potential denial of service could occur if an IP address, conflicting with existing guests or routers, is then assigned from outside of the allowed allocation pool. Versions of openstack-neutron before 13.0.0.0b2, 12.0.3 and 11.0.5 are vulnerable.

Timeline

dates in UTC

2018-09-1019:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-14635?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-14635?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Openstack neutron

Branch	Affected	Fixed in	Source
11.0	≥ 11.0.0, ≤ 11.0.5	no fix published	NVD
12.0	≥ 12.0.0, ≤ 12.0.3	no fix published	NVD
13.0	= 13.0.0.0	no fix published	NVD

Redhat openstack

Branch	Affected	Fixed in	Source
10.x	= 10	no fix published	NVD
12.x	= 12	no fix published	NVD
13.x	= 13	no fix published	NVD

neutron

Branch	Affected	Fixed in	Source
13.0	≥ 13.0.0.0b1, < 13.0.0.0b2	13.0.0.0b2	OSV
12.0	≥ 12.0.0, < 12.0.4	12.0.4	OSV
11.0	< 11.0.6	11.0.6	OSV

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

bugzilla.redhat.comPatch
git.openstack.orgPatch · Vendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CNACVSS 3.06.5read 2026-10-23
NVDCVSS 3.06.5read 2026-10-23
NVDCVSS 2.04read 2026-10-23
CNAweakness (CWE)CWE-20read 2026-10-23
NVDweakness (CWE)CWE-20read 2026-10-23
FIRST EPSSEPSS score2.5 %2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Published: 2018-09-10
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2018-14635?

Is CVE-2018-14635 actively exploited?

Active exploitation of CVE-2018-14635 has not been confirmed. Its EPSS score was 2.5% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-14635?

CVE-2018-14635 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

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