CVE-2015-3221

What it is

OpenStack Neutron before 2014.2.4 (juno) and 2015.1.x before 2015.1.1 (kilo), when using the IPTables firewall driver, allows remote authenticated users to cause a denial of service (L2 agent crash) by adding an address pair that is rejected by the ipset tool.

At a glance

Exploitability

Can be exploited over the network with a login. Limited direct impact.

Exploit odds

11.4% chance of exploitation in the next 30 days (EPSS). Higher than most.

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2015-08-26 19:59 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 00:25 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 11.4% in the next 30 days (EPSS).
• Severity: 4.0 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2015-08-26 19:59 UTC

Last modified

2026-06-17 00:25 UTC

Exploit probability

11.4% · EPSS, next 30 days

Weakness

CWE-20 · Improper input validation

Record status

Modified

Affected

• Openstack Neutron < 2014.2.4
• Openstack Neutron < 2015.1.1

Attack profile CVSS 2.0 · 4.0

Attack vector

Network

Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Partial

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2015-3221.md and follow it. Check whether this project is affected by CVE-2015-3221. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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