{"id":"CVE-2016-5363","aliases":["GHSA-9pp3-cvmq-9p22","PYSEC-2026-852"],"url":"https://o3.security/vulnerability/CVE-2016-5363","summary":"OpenStack Neutron Intended MAC-spoofing protection mechanism bypass","details":"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.","published":"2016-06-17T15:59:04.320Z","modified":"2026-10-24T10:30:24.709823925Z","cvss":{"score":8.2,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"neutron","fixedVersion":"7.1.0"},{"ecosystem":"PyPI","name":"neutron","fixedVersion":"8.1.0"}],"fix":{"url":"https://github.com/openstack/neutron/commit/5853af9cba6733725d6c9ac0db644f426713f0cf","label":"openstack/neutron@5853af9"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2016/06/10/5"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2016/06/10/6"},{"type":"WEB","url":"https://bugs.launchpad.net/neutron/+bug/1558658"},{"type":"WEB","url":"https://review.openstack.org/#/c/299021/"},{"type":"WEB","url":"https://review.openstack.org/#/c/299023/"},{"type":"WEB","url":"https://review.openstack.org/#/c/299025/"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2016:1473"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2016:1474"},{"type":"ADVISORY","url":"https://security.openstack.org/ossa/OSSA-2016-009.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2016-5363"},{"type":"WEB","url":"https://github.com/openstack/neutron/commit/5853af9cba6733725d6c9ac0db644f426713f0cf"},{"type":"WEB","url":"https://github.com/openstack/neutron/commit/6a93ee8ac1a901c255e3475a24f1afc11d8bf80f"},{"type":"WEB","url":"https://github.com/openstack/neutron/commit/997d7b03fb7f5528f0a3ce70867b9dcd9321509e"},{"type":"WEB","url":"https://github.com/openstack/neutron/commit/fd5fd259a02156babdfcb12f66cde6ec9e7274ae"},{"type":"PACKAGE","url":"https://github.com/openstack/neutron"},{"type":"WEB","url":"https://review.openstack.org/#/c/299021"},{"type":"WEB","url":"https://review.openstack.org/#/c/299023"},{"type":"WEB","url":"https://review.openstack.org/#/c/299025"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-24T10:30:24.709823925Z"}}