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CVE-2016-5362

27
FAUCET Score

CVE-2016-5362 is a high-severity vulnerability affecting OpenStack Neutron versions before 7.0.4 and 8.0.0 through 8.1.0. This flaw in the IPTables firewall allows remote attackers to bypass DHCP-spoofing protection via crafted DHCP discovery messages. Successful exploitation could lead to denial of service or network traffic interception. Despite its high CVSS score of 8.2, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.0.0, < 7.0.4CPE matchmatch criteria
cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
>= 8.0.0, <= 8.1.0CPE matchmatch criteria
cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.2HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
4.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.41%
Probability of exploitation in next 30 days
EPSS Percentile
87.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0341 is in the 78th percentile among its peer group of 51,485 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 (7)

pippatch availablevia ghsa
Product: neutronFixed in: 8.1.1
pippatch availablevia ghsa
Product: neutronFixed in: 7.0.5
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 8.0 (Liberty)Fixed in: openstack-neutron-1:7.0.4-11.el7ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7Fixed in: openstack-neutron-0:2015.1.4-2.el7ost
View patch
redhatno patchvia redhat_api
Product: Red Hat OpenStack Platform 9 (Mitaka)Fixed in: openstack-neutron
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)Fixed in: openstack-neutron
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 6 (Juno)Fixed in: openstack-neutron

Vendor Advisories (2)

pipGHSA-qpwc-p365-pqrrhigh

OpenStack Neutron allows remote attackers to bypass an intended DHCP-spoofing protection mechanism

May 14, 2022
redhatCVE-2016-5362Low

openstack-neutron: DHCP spoofing vulnerability

Mar 29, 2016

References

access.redhat.com / errata/RHSA-2016:1473
Third Party Advisory
access.redhat.com / errata/RHSA-2016:1474
Third Party Advisory
bugs.launchpad.net / neutron/+bug/1558658
Third Party Advisory
review.openstack.org
Vendor Advisory
review.openstack.org
Vendor Advisory
review.openstack.org
Third Party Advisory
security.openstack.org / ossa/OSSA-2016-009.html
Vendor Advisory
openwall.com / lists/oss-security/2016/06/10/5
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2016/06/10/6
Mailing ListThird Party Advisory