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CVE-2015-3221

24
FAUCET Score

CVE-2015-3221 describes a denial-of-service vulnerability in OpenStack Neutron versions prior to 2014.2.4 (Juno) and 2015.1.1 (Kilo) when utilizing the IPTables firewall driver. Authenticated remote attackers can trigger an L2 agent crash by providing an address pair that the ipset tool rejects. The vulnerability has a CVSS score of 4.0, indicating a low severity, with an attack vector of network and low attack complexity, resulting in a partial availability impact. There is no evidence of active exploitation, nor are there known Metasploit or Nuclei modules; however, a related ExploitDB entry exists for a different product. Community discussion and media coverage for this CVE are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2014.2, < 2014.2.4CPE matchmatch criteria
cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
>= 2015.1.0, < 2015.1.1CPE matchmatch criteria
cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
8.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
11.34%
Probability of exploitation in next 30 days
EPSS Percentile
95.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-37360 · Jun 24, 2015
This CVE's current EPSS score of 0.1134 is in the 99th percentile among its peer group of 21,939 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

pippatch availablevia ghsa
Product: neutronFixed in: 2014.2.4
pippatch availablevia ghsa
Product: neutronFixed in: 2015.1.1
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7Fixed in: openstack-neutron-0:2014.2.3-9.el7ost
View patch

Vendor Advisories (2)

pipGHSA-wf44-4mgj-rwvxmedium

OpenStack Neutron Improper Input Validation vulnerability

May 14, 2022
redhatCVE-2015-3221Moderate

openstack-neutron: L2 agent DoS through incorrect allowed address pairs

Jun 23, 2015

References

lists.openstack.org / pipermail/openstack-announce/2015-June/000377.html
Vendor Advisory
rhn.redhat.com / errata/RHSA-2015-1680.html
Vendor Advisory
bugs.launchpad.net / neutron/+bug/1461054
Third Party Advisory
securityfocus.com / bid/75368
Third Party AdvisoryVDB Entry