CVE-2018-14636
Versions of openstack-neutron before 13.0.0.0b2, 12.0.3, 11.0.5 are vulnerable.
Does this matter?
Lower severity and a low EPSS score (1.17%). Track it; it rarely justifies an emergency change on its own.
Description
Live-migrated instances are briefly able to inspect traffic for other instances on the same hypervisor. This brief window could be extended indefinitely if the instance's port is set administratively down prior to live-migration and kept down after the migration is complete. This is possible due to the Open vSwitch integration bridge being connected to the instance during migration. When connected to the integration bridge, all traffic for instances using the same Open vSwitch instance would potentially be visible to the migrated guest, as the required Open vSwitch VLAN filters are only applied post-migration. Versions of openstack-neutron before 13.0.0.0b2, 12.0.3, 11.0.5 are vulnerable.
- CVSS 3.0
- 5.3 MEDIUMCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.17% probability · 67th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-300
- Affected
- openstack/neutron
- Source
- secalert@redhat.com
EPSS 1.2% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://bugs.launchpad.net/neutron/+bug/1734320Issue Tracking, Third Party Advisory
- https://bugs.launchpad.net/neutron/+bug/1767422Issue Tracking, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14636Issue Tracking, Third Party Advisory
- https://bugs.launchpad.net/neutron/+bug/1734320Issue Tracking, Third Party Advisory
- https://bugs.launchpad.net/neutron/+bug/1767422Issue Tracking, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14636Issue Tracking, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.