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CVE-2019-9735· NVD / CVE Program· CNA mitre

An issue was discovered in the iptables firewall module in OpenStack Neutron before 10.0.8, 11.x before 11.0.7, 12.x before 12.0.6, and 13.x

Noroxi assessment

Priority: Monitor (action score 27/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 3.7% (FIRST EPSS); higher than 89.5% of all records.
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: neutron (Debian:12) 2:13.0.2-13; neutron (Debian:9) 2:9.1.1-3+deb9u1; neutron (PyPI) 11.0.7, 12.0.6, 13.0.3.

Low priority for now. Upgrade to neutron (Debian:12) 2:13.0.2-13; neutron (Debian:9) 2:9.1.1-3+deb9u1; neutron (PyPI) 11.0.7, 12.0.6, 13.0.3 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

An issue was discovered in the iptables firewall module in OpenStack Neutron before 10.0.8, 11.x before 11.0.7, 12.x before 12.0.6, and 13.x before 13.0.3. By setting a destination port in a security group rule along with a protocol that doesn't support that option (for example, VRRP), an authenticated user may block further application of security group rules for instances from any project/tenant on the compute hosts to which it's applied. (Only deployments using the iptables security group driver are affected.)

MediumCVSS 6.5 · v3.0—No exploit Fix available
Published
Mar 12, 2019
Updated
Jun 16, 2026
EPSS
3.7% · 89th percentile

Report tools

JSON

Action score

27

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 3.7%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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When you'll hear from us

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  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
openstackneutron
redhatopenstack
debiandebian linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux9.0
  • openstack neutron11.0.0 and later · before 11.0.7
  • openstack neutron12.0.0 and later · before 12.0.6
  • openstack neutron13.0.0 and later · before 13.0.3
  • openstack neutronbefore 10.0.8
  • redhat openstack10
  • redhat openstack13
  • redhat openstack14

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12neutronbefore 2:13.0.2-132:13.0.2-13
Debian:9neutronbefore 2:9.1.1-3+deb9u12:9.1.1-3+deb9u1
PyPIneutronfrom 11.0.0 · before 11.0.711.0.7
PyPIneutronfrom 12.0.0 · before 12.0.612.0.6
PyPIneutronfrom 13.0.0 · before 13.0.313.0.3
PyPIneutronbefore 10.0.810.0.8
Red Hat:openstack:10::el7openstack-neutronbefore 1:9.4.1-40.el7ost1:9.4.1-40.el7ost
Red Hat:openstack:10::el7openstack-neutron-bigswitch-agentbefore 2:9.42.14-1.el7ost2:9.42.14-1.el7ost
Red Hat:openstack:10::el7openstack-neutron-bigswitch-lldpbefore 2:9.42.14-1.el7ost2:9.42.14-1.el7ost
Red Hat:openstack:10::el7openstack-neutron-commonbefore 1:9.4.1-40.el7ost1:9.4.1-40.el7ost
Red Hat:openstack:10::el7openstack-neutron-lbaasbefore 1:9.2.2-8.el7ost1:9.2.2-8.el7ost
Red Hat:openstack:10::el7openstack-neutron-linuxbridgebefore 1:9.4.1-40.el7ost1:9.4.1-40.el7ost
Red Hat:openstack:10::el7openstack-neutron-macvtap-agentbefore 1:9.4.1-40.el7ost1:9.4.1-40.el7ost
Red Hat:openstack:10::el7openstack-neutron-metering-agentbefore 1:9.4.1-40.el7ost1:9.4.1-40.el7ost
Red Hat:openstack:10::el7openstack-neutron-ml2before 1:9.4.1-40.el7ost1:9.4.1-40.el7ost
Red Hat:openstack:10::el7openstack-neutron-openvswitchbefore 1:9.4.1-40.el7ost1:9.4.1-40.el7ost
Red Hat:openstack:10::el7openstack-neutron-rpc-serverbefore 1:9.4.1-40.el7ost1:9.4.1-40.el7ost
Red Hat:openstack:10::el7openstack-neutron-sriov-nic-agentbefore 1:9.4.1-40.el7ost1:9.4.1-40.el7ost
Red Hat:openstack:10::el7python-networking-bigswitchbefore 2:9.42.14-1.el7ost2:9.42.14-1.el7ost
Red Hat:openstack:10::el7python-neutronbefore 1:9.4.1-40.el7ost1:9.4.1-40.el7ost
Red Hat:openstack:10::el7python-neutron-lbaasbefore 1:9.2.2-8.el7ost1:9.2.2-8.el7ost
Red Hat:openstack:10::el7python-neutron-lbaas-testsbefore 1:9.2.2-8.el7ost1:9.2.2-8.el7ost
Red Hat:openstack:10::el7python-neutron-testsbefore 1:9.4.1-40.el7ost1:9.4.1-40.el7ost
Red Hat:openstack:13::el7openstack-neutronbefore 1:12.0.5-11.el7ost1:12.0.5-11.el7ost

+96

Same product

openstack: all records

Other highest-scoring records for the same primary product.

  • CVE-2015-8914The IPTables firewall in OpenStack Neutron before 7.0.4 and 8.0.0 through 8.1.0 allows remote attackers to bypass an intended ICMPv6-spoofin
    37Monitor
  • CVE-2014-0187The openvswitch-agent process in OpenStack Neutron 2013.1 before 2013.2.4 and 2014.1 before 2014.1.1 allows remote authenticated users to by
    37Monitor
  • CVE-2021-38598OpenStack Neutron before 16.4.1, 17.x before 17.1.3, and 18.0.0 allows hardware address impersonation when the linuxbridge driver with ebtab
    36Monitor
  • CVE-2016-5363The IPTables firewall in OpenStack Neutron before 7.0.4 and 8.0.0 through 8.1.0 allows remote attackers to bypass an intended MAC-spoofing p
    33Monitor
  • CVE-2016-5362The IPTables firewall in OpenStack Neutron before 7.0.4 and 8.0.0 through 8.1.0 allows remote attackers to bypass an intended DHCP-spoofing
    33Monitor
  • CVE-2014-3632The default configuration in a sudoers file in the Red Hat openstack-neutron package before 2014.1.2-4, as used in Red Hat Enterprise Linux
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:neutron2:13.0.2-13 · Debian:12Package registry (OSV)
PyPI:neutron10.0.8Package registry (OSV)
PyPI:neutron11.0.7Package registry (OSV)
PyPI:neutron12.0.6Package registry (OSV)
PyPI:neutron13.0.3Package registry (OSV)
red hat:openstack-neutron1:13.0.3-0.20190313155649.00b63be.el7ost · Red Hat:openstack:14::el7Package registry (OSV)
red hat:openstack-neutron-bigswitch-agent2:9.42.14-1.el7ost · Red Hat:openstack:10::el7Package registry (OSV)
red hat:openstack-neutron-bigswitch-lldp2:9.42.14-1.el7ost · Red Hat:openstack:10::el7Package registry (OSV)
red hat:openstack-neutron-common1:13.0.3-0.20190313155649.00b63be.el7ost · Red Hat:openstack:14::el7Package registry (OSV)
red hat:openstack-neutron-linuxbridge1:13.0.3-0.20190313155649.00b63be.el7ost · Red Hat:openstack:14::el7Package registry (OSV)
red hat:openstack-neutron-macvtap-agent1:13.0.3-0.20190313155649.00b63be.el7ost · Red Hat:openstack:14::el7Package registry (OSV)
red hat:openstack-neutron-metering-agent1:13.0.3-0.20190313155649.00b63be.el7ost · Red Hat:openstack:14::el7Package registry (OSV)
red hat:openstack-neutron-ml21:13.0.3-0.20190313155649.00b63be.el7ost · Red Hat:openstack:14::el7Package registry (OSV)
red hat:openstack-neutron-openvswitch1:13.0.3-0.20190313155649.00b63be.el7ost · Red Hat:openstack:14::el7Package registry (OSV)
red hat:openstack-neutron-rpc-server1:13.0.3-0.20190313155649.00b63be.el7ost · Red Hat:openstack:14::el7Package registry (OSV)
red hat:openstack-neutron-sriov-nic-agent1:13.0.3-0.20190313155649.00b63be.el7ost · Red Hat:openstack:14::el7Package registry (OSV)
red hat:python-neutron1:13.0.3-0.20190313155649.00b63be.el7ost · Red Hat:openstack:14::el7Package registry (OSV)
suse:ardana-ansible8.0+git.1560208949.67048e3-3.64.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:ardana-db8.0+git.1564410318.f0cca2c-3.28.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:ardana-freezer8.0+git.1564164977.ef9baeb-3.18.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:ardana-glance8.0+git.1564491709.349d78e-3.14.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:ardana-input-model8.0+git.1562848601.c3daff0-3.30.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:ardana-nova8.0+git.1565388406.c6abb8d-3.32.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:ardana-osconfig8.0+git.1563383198.c7fd9b4-3.39.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:ardana-tempest8.0+git.1562849010.73bc517-3.24.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:caasp-openstack-heat-templates1.0+git.1560518045.ad7dc6d-4.15.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:documentation-hpe-helion-openstack-installation8.20190805-1.20.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:documentation-hpe-helion-openstack-operations8.20190805-1.20.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)
suse:documentation-hpe-helion-openstack-opsconsole8.20190805-1.20.1 · SUSE:HPE Helion OpenStack 8Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-755 · Improper Handling of Exceptional Conditions

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (8 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records