CVE-2015-5240
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,…
- 3.5LowCVSS base score
- 0.98%Exploitation in 30 daysEPSS · top 38% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By redhat
- 4 months later
· 4 months later
Published
- 9 years later
· 9 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Low3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
- EPSS (exploitation in 30 days)
- 0.98% · top 38% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.5.
Affected products
n/a
- affected n/a
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPIneutronGHSA-hhpj-6pj7-wpx5 (opens in a new tab)
References
5
- RHSA-2015:1909 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1258458 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://security.openstack.org/ossa/OSSA-2015-018.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugs.launchpad.net/neutron/+bug/1489111 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20151008 [OSSA 2015-018] Neutron firewall rules bypass through port update (CVE-2015-5240) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-4160 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-hhpj-6pj7-wpx5 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2015-5240)Record last updated .