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CVE-2014-9751

25
FAUCET Score

CVE-2014-9751 describes a vulnerability in the read_network_packet function of ntpd in NTP 4.x before 4.2.8p1 on Linux and OS X, allowing remote attackers to spoof restricted packets by leveraging an improperly handled IPv6 loopback address. This vulnerability has a CVSS score of 6.8, indicating a medium severity with network access, medium attack complexity, and potential for partial confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, publicly available exploit code in Metasploit, Nuclei, or ExploitDB, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.2.0, < 4.2.8CPE matchmatch criteria
cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*
4.2.8CPE matchmatch criteria
cpe:2.3:a:ntp:ntp:4.2.8:-:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

AV:N/AC:M/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.53%
Probability of exploitation in next 30 days
EPSS Percentile
90.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0453 is in the 88th percentile among its peer group of 19,956 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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

bugs.ntp.org / show_bug.cgi
Issue TrackingPatchVendor Advisory
rhn.redhat.com / errata/RHSA-2015-1459.html
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
support.hpe.com / hpsc/doc/public/display
Third Party Advisory
support.ntp.org / bin/view/Main/SecurityNotice
Vendor Advisory
debian.org / security/2015/dsa-3388
Third Party Advisory
kb.cert.org / vuls/id/852879
Third Party AdvisoryUS Government Resource
oracle.com / technetwork/topics/security/linuxbulletinoct2015-2719645.html
Third Party Advisory
securityfocus.com / bid/72584
Third Party AdvisoryVDB Entry