CVE-2016-5363: Openstack Neutron

High severity, CVSS 8.2. EPSS: 3.3% chance of exploitation in the next 30 days.

The IPTables firewall in OpenStack Neutron before 7.0.4 and 8.0.0 through 8.1.0 allows remote attackers to bypass an intended MAC-spoofing protection mechanism and consequently cause a denial of service or intercept network traffic via (1) a crafted DHCP discovery message or (2) crafted non-IP traffic.

Affected products

• Openstack Neutron: version 7.0.0 only; version 7.0.1 only; version 7.0.2 only; version 7.0.3 only; version 7.0.4 only; version 8.0.0 only; …

Published 2016-06-17. Last modified 2026-06-17.