No exploitation reportedFix available

CVE-2019-10876

Q: Is CVE-2019-10876 actively exploited?

Active exploitation of CVE-2019-10876 has not been confirmed. Its EPSS score was 1.7% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2019-10876?

CVE-2019-10876 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

No exploitation reported by the sources we read.

Published2019-04-05
Fixed in13.0.3 · 12.0.6 · 11.0.7

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An issue was discovered in OpenStack Neutron 11.x before 11.0.7, 12.x before 12.0.6, and 13.x before 13.0.3. By creating two security groups with separate/overlapping port ranges, an authenticated user may prevent Neutron from being able to configure networks on any compute nodes where those security groups are present, because of an Open vSwitch (OVS) firewall KeyError. All Neutron deployments utilizing neutron-openvswitch-agent are affected.

Timeline

dates in UTC

2019-04-0505:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-10876?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-10876?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Openstack neutron

Branch	Affected	Fixed in	Source
13.0	≥ 13.0.0, < 13.0.3	13.0.3	NVD · OSV
12.0	≥ 12.0.0, < 12.0.6	12.0.6	NVD · OSV
11.0	≥ 11.0.0, < 11.0.7	11.0.7	NVD · OSV
11.0	< 11.0.7	11.0.7	OSV

Redhat openstack

Branch	Affected	Fixed in	Source
13.x	= 13	no fix published	NVD
14.x	= 14	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Openstack neutron to 13.0.3 · 12.0.6 · 11.0.7

Advisories and patches

review.openstack.orgVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.06.5read 2026-10-23
NVDCVSS 2.04read 2026-10-23
FIRST EPSSEPSS score1.7 %2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Published: 2019-04-05
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2019-10876?

Is CVE-2019-10876 actively exploited?

Active exploitation of CVE-2019-10876 has not been confirmed. Its EPSS score was 1.7% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-10876?

CVE-2019-10876 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

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