← Vulnerability feed

Vulnerability record · CVE-2015-5240 · published 27 October 2015

CVE-2015-5240: Openstack neutron race condition vulnerability

Openstack · Neutron

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.

3.5 CVSS 2.0 Low EPSS 0.98% · top 37.3% CWE-362 · Race condition
3.5CVSS 2.0 base score
0.98%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References
17 Jun 2026Last modified by NVD

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.

AV:N/AC:M/Au:S/C:N/I:P/A:N

Affected products

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

References

LinkTags
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 Vendor Advisory
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 Vendor Advisory

Track CVE-2015-5240 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

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

9.1CVE-2021-38598Openstack neutron authentication bypass by spoofing vulnerabilityOpenStack Neutron before 16.4.1, 17.x before 17.1.3, and 18.0.0 allows hardware address impersonation when the linuxbridge driver with ebtables-nft i…EPSS 1.2%9.1CVE-2015-8914Openstack neutron vulnerabilityThe IPTables firewall in OpenStack Neutron before 7.0.4 and 8.0.0 through 8.1.0 allows remote attackers to bypass an intended ICMPv6-spoofing protect…EPSS 4.3%9.0CVE-2014-0187Openstack neutron permissions and access controls vulnerabilityThe openvswitch-agent process in OpenStack Neutron 2013.1 before 2013.2.4 and 2014.1 before 2014.1.1 allows remote authenticated users to bypass secu…EPSS 3.0%8.2CVE-2016-5363Openstack neutron vulnerabilityThe 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…EPSS 3.3%8.2CVE-2016-5362Openstack neutron vulnerabilityThe IPTables firewall in OpenStack Neutron before 7.0.4 and 8.0.0 through 8.1.0 allows remote attackers to bypass an intended DHCP-spoofing protectio…EPSS 3.4%7.6CVE-2014-3632Openstack neutron permissions and access controls vulnerabilityThe default configuration in a sudoers file in the Red Hat openstack-neutron package before 2014.1.2-4, as used in Red Hat Enterprise Linux Open Stac…EPSS 2.5%7.6CVE-2013-6433Openstack neutron permissions and access controls vulnerabilityThe default configuration in the Red Hat openstack-neutron package before 2013.2.3-7 does not properly set a configuration file for rootwrap, which a…EPSS 3.3%7.1CVE-2021-20267Openstack neutron insufficient verification of data authenticity vulnerabilityA flaw was found in openstack-neutron's default Open vSwitch firewall rules. By sending carefully crafted packets, anyone in control of a server inst…EPSS 1.0%

Source: NIST National Vulnerability Database (record CVE-2015-5240), CISA KEV, FIRST EPSS (scores of 2026-11-14). This page is refreshed as NVD updates the record.