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CVE-2014-7821

14
FAUCET Score

CVE-2014-7821 is a denial-of-service vulnerability affecting OpenStack Neutron versions before 2014.1.4 and 2014.2.x before 2014.2.1, as well as related Fedora and Red Hat products. A remote authenticated user can trigger a crash by providing a specially crafted dns_nameservers value in the DNS configuration. The vulnerability has a CVSS score of 4.0 (Medium), indicating a network-based attack with low complexity requiring authentication, resulting in partial 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
>= 2012.2.1, < 2014.1.4CPE matchmatch criteria
cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
>= 2014.2, < 2014.2.1CPE matchmatch criteria
cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*
20CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:redhat:openstack:4.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.0MEDIUM

AV:N/AC:L/Au:S/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
8.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.94%
Probability of exploitation in next 30 days
EPSS Percentile
89.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0394 is in the 97th percentile among its peer group of 21,974 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Remediation records are not available for this CVE.

References

lists.fedoraproject.org / pipermail/package-announce/2015-April/155351.html
Third Party Advisory
lists.openstack.org / pipermail/openstack-announce/2014-November/000303.html
PatchVendor Advisory
rhn.redhat.com / errata/RHSA-2014-1938.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2014-1942.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2015-0044.html
Third Party Advisory
bugs.launchpad.net / neutron/+bug/1378450
Third Party Advisory
secunia.com / advisories/62586
Third Party Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/98818
Third Party AdvisoryVDB Entry
oracle.com / technetwork/topics/security/bulletinjan2015-2370101.html
Third Party Advisory