CVE-2016-5363: n/a vulnerability

CVE-2016-5363: The IPTables firewall in OpenStack Neutron before 7.0.4 and 8.0.0 through 8.1.0 allows remote attackers to...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 01:00 UTC (UTC+00:00)

Security readout for executives and security teams

This flaw affects older OpenStack Neutron firewall handling. A network-level attacker could get around MAC-spoofing protections, potentially disrupting service or intercepting tenant network traffic. It matters most for organizations running affected OpenStack clouds, especially multi-tenant environments where network isolation is a core control. Exposure is likely limited to OpenStack deployments using affected Neutron versions and the IPTables firewall driver. Environments not running OpenStack Neutron, or already updated beyond the affected releases, are not indicated as affected by the provided sources. Prioritize remediation for any active OpenStack cloud using affected Neutron versions. The main business risk is weakened tenant isolation, which can undermine service availability and traffic confidentiality in shared cloud environments. Mitigation focus: Apply OpenStack Neutron updates referenced by OSSA-2016-009.; Apply applicable Red Hat updates from RHSA-2016:1473 or RHSA-2016:1474.; Move affected Neutron versions below 7.0.4 or 8.0.0-8.1.0 to vendor-fixed releases..

Prepared: Jun 13, 2026, 14:22 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jun 17, 2016, 15:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

6Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
RHSA-2016:1473CVE reference · vendor-advisory, x_refsource_REDHAT
https://review.openstack.org/#/c/299025/CVE reference · x_refsource_CONFIRM
https://security.openstack.org/ossa/OSSA-2016-009.htmlCVE reference · x_refsource_CONFIRM
https://bugs.launchpad.net/neutron/+bug/1558658CVE reference · x_refsource_CONFIRM
RHSA-2016:1474CVE reference · vendor-advisory, x_refsource_REDHAT

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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