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CVE-2019-10876

23
FAUCET Score

CVE-2019-10876 is a medium-severity vulnerability affecting OpenStack Neutron versions 11.x, 12.x, and 13.x, specifically deployments utilizing the neutron-openvswitch-agent. An authenticated user can trigger a denial of service by creating overlapping security groups, leading to an Open vSwitch (OVS) firewall KeyError that prevents network configuration on compute nodes. The vulnerability has a CVSS score of 6.5, indicating a network-based attack with low privileges and no user interaction required, resulting in high availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 11.0.0, < 11.0.7CPE matchmatch criteria
cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
>= 12.0.0, < 12.0.6CPE matchmatch criteria
cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
>= 13.0.0, < 13.0.3CPE matchmatch criteria
cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
13CPE matchmatch criteria
cpe:2.3:a:redhat:openstack:13:*:*:*:*:*:*:*
14CPE matchmatch criteria
cpe:2.3:a:redhat:openstack:14:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.73%
Probability of exploitation in next 30 days
EPSS Percentile
75.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0173 is in the 88th percentile among its peer group of 21,977 CVEs.

Social Chatter

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 (5)

pippatch availablevia ghsa
Product: neutronFixed in: 11.0.7
pippatch availablevia ghsa
Product: neutronFixed in: 12.0.6
pippatch availablevia ghsa
Product: neutronFixed in: 13.0.3
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 13.0 (Queens)Fixed in: openstack-neutron-1:12.0.5-11.el7ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 14.0 (Rocky)Fixed in: openstack-neutron-1:13.0.3-0.20190313155649.00b63be.el7ost
View patch

Vendor Advisories (2)

pipGHSA-jr9m-v5qh-mh2jhigh

OpenStack Neutron overlapping security group rules prevents compute node network configuration

May 13, 2022
redhatCVE-2019-10876Moderate

openstack-neutron: DOS via broken port range merging in security group

Feb 28, 2019

References

access.redhat.com / errata/RHSA-2019:0879
Third Party Advisory
access.redhat.com / errata/RHSA-2019:0935
Third Party Advisory
bugs.launchpad.net / ossa/+bug/1813007
Issue TrackingThird Party Advisory
review.openstack.org
Vendor Advisory
security.openstack.org / ossa/OSSA-2019-002.html
Third Party Advisory
openwall.com / lists/oss-security/2019/04/09/2
Mailing ListThird Party Advisory