CVE-2014-9296

CVE-2014-9296 is a medium-severity vulnerability in Ntp with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 16% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-17.

Key facts

• Severity: Medium (CVSS 2.0 base score 5.0)
• EPSS exploit prediction: 16% (97th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-17
• Affected product: Ntp
• Published: 2014-12-20
• Last modified: 2026-06-17

Description

The receive function in ntp_proto.c in ntpd in NTP before 4.2.8 continues to execute after detecting a certain authentication error, which might allow remote attackers to trigger an unintended association change via crafted packets.

Frequently asked questions

What is CVE-2014-9296?

The receive function in ntp_proto.c in ntpd in NTP before 4.2.8 continues to execute after detecting a certain authentication error, which might allow remote attackers to trigger an unintended association change via crafted packets.

How severe is CVE-2014-9296?

CVE-2014-9296 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2014-9296 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-9296?

CVE-2014-9296 affects Ntp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2014-9296?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2014-9296 published?

CVE-2014-9296 was published on 2014-12-20 and last updated on 2026-06-17.

References

• http://advisories.mageia.org/MGASA-2014-0541.html
• http://bk1.ntp.org/ntp-dev/?PAGE=patch&REV=548ad06feXHK1HlZoY-WZVyynwvwAg
• http://bugs.ntp.org/show_bug.cgi?id=2670
• http://lists.opensuse.org/opensuse-security-announce/2014-12/msg00020.html
• http://marc.info/?l=bugtraq&m=142590659431171&w=2
• http://marc.info/?l=bugtraq&m=142853370924302&w=2
• http://marc.info/?l=bugtraq&m=144182594518755&w=2
• http://rhn.redhat.com/errata/RHSA-2015-0104.html
• http://secunia.com/advisories/62209
• http://support.ntp.org/bin/view/Main/SecurityNotice
• http://www.kb.cert.org/vuls/id/852879
• http://www.mandriva.com/security/advisories?name=MDVSA-2015:003
• http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
• http://www.securityfocus.com/bid/71758
• https://bugzilla.redhat.com/show_bug.cgi?id=1176040
• https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04790232
• https://kc.mcafee.com/corporate/index?page=content&id=SB10103
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20141222-ntpd
• https://www.arista.com/en/support/advisories-notices/security-advisories/1047-security-advisory-8

Affected products (1)

• cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

• 42.200.60.186 (ipv4-addr)
• 223.197.153.135 (ipv4-addr)