# CVE-2016-5362: PYSEC-2026-854 - OpenStack Neutron allows remote attackers to bypass an intended DHCP-spoofing protection mechanism

Source: https://junglewise.ai/threats/cve-2016-5362-openstack-neutron-allows-remote-attackers-to-bypass-an-intended  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-06  
License: CC BY 4.0 with a link back

CVE-2016-5362 · Severity: low · CVSS 3 · Published 2026-07-06

OpenStack Neutron allows remote attackers to bypass an intended DHCP-spoofing protection mechanism

Technologies: [neutron (PyPI)](https://junglewise.ai/threats/technologies/pypi-neutron). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2016-5362 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2016-5362 being exploited in the wild.

**How severe is CVE-2016-5362?** Low severity, with a CVSS score of 3, published 6 July 2026.

**Which products and versions are affected?** neutron (PyPI) ECOSYSTEM:introduced=0,fixed=7.0.5, ECOSYSTEM:introduced=0,fixed=7.0.5,introduced=8.0.0,fixed=8.1.1.

**Is there a fix for CVE-2016-5362?** Yes. neutron (PyPI): upgrade to 7.0.5, 8.1.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2016-5362?** Check whether you run neutron (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- neutron (PyPI): upgrade to 7.0.5, 8.1.1 or later

  ```sh
  pip install "neutron>=8.1.1"
  ```


## Affected products

- neutron (PyPI) ECOSYSTEM:introduced=0,fixed=7.0.5, ECOSYSTEM:introduced=0,fixed=7.0.5,introduced=8.0.0,fixed=8.1.1

## Identifiers

- CVE-2016-5362
- GHSA-qpwc-p365-pqrr
- PYSEC-2026-854

## Related threats

- [PYSEC-2026-1693 - OpenStack Neutron can use an incorrect ID during policy enforcement](https://junglewise.ai/threats/cve-2024-53916-openstack-neutron-can-use-an-incorrect-id-during-policy)
- [PYSEC-2026-1694 - Denial of service in neutron](https://junglewise.ai/threats/cve-2023-3637-denial-of-service-in-neutron)
- [PYSEC-2026-855 - openstack-neutron uncontrolled resource consumption flaw](https://junglewise.ai/threats/cve-2022-3277-openstack-neutron-uncontrolled-resource-consumption-flaw)
- [PYSEC-2026-851 - OpenStack Neutron Improper Authentication vulnerability](https://junglewise.ai/threats/cve-2014-0056-openstack-neutron-improper-authentication-vulnerability)
- [PYSEC-2026-853 - OpenStack Neutron Race condition vulnerability](https://junglewise.ai/threats/cve-2015-5240-openstack-neutron-race-condition-vulnerability)