CVE-2016-5363

mediumpriority · track · 34EPSS 0.033 · 88 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

3.27% (88th) EPSS

CVSS 6.4 · medium

Is it mine?

10 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

8.2

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.4–8.2

v2.06.4mediumAV:N/AC:L/Au:N/C:P/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 4.9

v3.08.2highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 4.2

v3.08.2highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Hsecondary · OSV

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-254USprimary

affected products (10)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
openstack neutron= 7.0.0nvdUScpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
openstack neutron= 7.0.1nvdUScpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
openstack neutron= 7.0.2nvdUScpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
openstack neutron= 7.0.3nvdUScpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
openstack neutron= 7.0.4nvdUScpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
openstack neutron= 8.0.0nvdUScpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
openstack neutron= 8.1.0nvdUScpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
PyPI neutron< 7.1.0osvUSpkg:pypi/neutron
PyPI neutron8.0.0 → 8.1.0osvUSpkg:pypi/neutron

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-9pp3-cvmq-9p22OpenStack Neutron Intended MAC-spoofing protection mechanism bypass2022-05-17ghsa · osvUS
The IPTables firewall in OpenStack Neutron up to 7.0.4 and 8.x before 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.
PYSEC-2026-852OpenStack Neutron Intended MAC-spoofing protection mechanism bypass2026-07-06vendor · osvUS
The IPTables firewall in OpenStack Neutron up to 7.0.4 and 8.x before 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.

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv nvd NVD CVE.org MITRE

published 2016-06-17modified 2026-06-17

related (800)

Related entries.

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+795 more

references (25)

External citations — patches, advisories, analysis.

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