{"cve":"CVE-2015-5240","nvd":{"published":"2015-10-27T16:59:06.230","modified":"2026-06-17T00:28:44.360","status":"Modified","description":"Race condition in OpenStack Neutron before 2014.2.4 and 2015.1 before 2015.1.2, when using the ML2 plugin or the security groups AMQP API, allows remote authenticated users to bypass IP anti-spoofing controls by changing the device owner of a port to start with network: before the security group rules are applied.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-362"],"references":["http://rhn.redhat.com/errata/RHSA-2015-1909.html","http://www.openwall.com/lists/oss-security/2015/09/08/9","https://bugs.launchpad.net/neutron/+bug/1489111","https://bugzilla.redhat.com/show_bug.cgi?id=1258458","https://security.openstack.org/ossa/OSSA-2015-018.html"],"products":["openstack:neutron"],"source":"nvd","synced_at":"2026-10-19T20:37:45.466985407+00:00"},"epss":{"cve":"CVE-2015-5240","score":0.00976,"percentile":0.62112,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-hhpj-6pj7-wpx5","url":"https://osv.dev/vulnerability/GHSA-hhpj-6pj7-wpx5","summary":"OpenStack Neutron Race condition vulnerability","modified":"2026-07-07T11:56:20.536165385Z","packages":[{"ecosystem":"PyPI","name":"neutron","purl":"pkg:pypi/neutron","ranges":["<7.0.0"],"fixed":["7.0.0"]}]},{"id":"PYSEC-2026-853","url":"https://osv.dev/vulnerability/PYSEC-2026-853","summary":"OpenStack Neutron Race condition vulnerability","modified":"2026-07-07T11:45:19.101937521Z","packages":[{"ecosystem":"PyPI","name":"neutron","purl":"pkg:pypi/neutron","ranges":["<7.0.0"],"fixed":["7.0.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}