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Vulnerability record · CVE-2019-10876 · published 5 April 2019

CVE-2019-10876: Openstack neutron vulnerability

Openstack · Neutron

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.

6.5 CVSS 3.0 Medium EPSS 1.7% · top 22.1%
6.5CVSS 3.0 base score, v2 4.0
1.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
12References
17 Jun 2026Last modified by NVD

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:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.openwall.com/lists/oss-security/2019/04/09/2 Mailing ListThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:0879 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0935 Third Party Advisory
https://bugs.launchpad.net/ossa/+bug/1813007 Issue TrackingThird Party Advisory
https://review.openstack.org/#/q/topic:bug/1813007 Vendor Advisory
https://security.openstack.org/ossa/OSSA-2019-002.html Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/04/09/2 Mailing ListThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:0879 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0935 Third Party Advisory
https://bugs.launchpad.net/ossa/+bug/1813007 Issue TrackingThird Party Advisory
https://review.openstack.org/#/q/topic:bug/1813007 Vendor Advisory
https://security.openstack.org/ossa/OSSA-2019-002.html Third Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-10876), CISA KEV, FIRST EPSS (scores of 2026-11-14). This page is refreshed as NVD updates the record.