{"cve":"CVE-2019-10876","nvd":{"published":"2019-04-05T05:29:03.187","modified":"2026-06-17T02:11:46.240","status":"Modified","description":"An issue was discovered in OpenStack Neutron 11.x before 11.0.7, 12.x before 12.0.6, and 13.x before 13.0.3. By creating two security groups with separate/overlapping port ranges, an authenticated user may prevent Neutron from being able to configure networks on any compute nodes where those security groups are present, because of an Open vSwitch (OVS) firewall KeyError. All Neutron deployments utilizing neutron-openvswitch-agent are affected.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","score":6.5},"cwes":[],"references":["http://www.openwall.com/lists/oss-security/2019/04/09/2","https://access.redhat.com/errata/RHSA-2019:0879","https://access.redhat.com/errata/RHSA-2019:0935","https://bugs.launchpad.net/ossa/+bug/1813007","https://review.openstack.org/#/q/topic:bug/1813007"],"products":["openstack:neutron","redhat:openstack"],"source":"nvd","synced_at":"2026-10-19T20:55:22.313337056+00:00"},"epss":{"cve":"CVE-2019-10876","score":0.01725,"percentile":0.77545,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-jr9m-v5qh-mh2j","url":"https://osv.dev/vulnerability/GHSA-jr9m-v5qh-mh2j","summary":"OpenStack Neutron overlapping security group rules prevents compute node network configuration","modified":"2024-12-07T05:42:50.523612Z","packages":[{"ecosystem":"PyPI","name":"neutron","purl":"pkg:pypi/neutron","ranges":[">=11.0.0 <11.0.7"],"fixed":["11.0.7"]},{"ecosystem":"PyPI","name":"neutron","purl":"pkg:pypi/neutron","ranges":[">=12.0.0 <12.0.6"],"fixed":["12.0.6"]},{"ecosystem":"PyPI","name":"neutron","purl":"pkg:pypi/neutron","ranges":[">=13.0.0 <13.0.3"],"fixed":["13.0.3"]}]},{"id":"PYSEC-2019-189","url":"https://osv.dev/vulnerability/PYSEC-2019-189","summary":"","modified":"2026-06-10T17:02:23.691854723Z","packages":[{"ecosystem":"PyPI","name":"neutron","purl":"pkg:pypi/neutron","ranges":[">=12.0.0 <12.0.6","<11.0.7",">=13.0.0 <13.0.3"],"fixed":["12.0.6","11.0.7","13.0.3"]}]}],"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."]}