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CVE-2015-7704 ntp

Affected softwarentp
Severity7.5 High CVSS 3.1 2 scores
WeaknessImproper input validation (CWE-20)
Published7 Aug 2017
Updated17 Jun 2026

Description

The ntpd client in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service via a number of crafted "KOD" messages.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 9 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment no assessment published
  • Indexed PoC none indexed
  • EPSS 11% chance in 30 days A model's forecast, not a report of exploitation. Higher than 96% of all scored CVEs.

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

  • Protection none
  • Action not pursued none
  • Review human Researcher
  • Record active
Decided by Manual classification of this CVE in the legacy dataset
Finding A manual classification set this CVE's status to Outside Waratek scope, but the CVE names a tracked product.

CVSS

7.5 HIGH v3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H NVD Primary published
CVSS 2.0 5.0 none AV:N/AC:L/Au:N/C:N/I:N/A:P NVD Primary

Affected software and releases

Products and versions

14 products, 58 version entries
SourceVendorProductSchemeAffected versions
nvd citrix xenserver generic 6.0.2 · 6.2.0 · 6.5 · 7.0
nvd debian debian linux generic 7.0 · 8.0 · 9.0
nvd mcafee enterprise security manager generic < 10.4.0 · ≥ 11.0.0 and < 11.2.0
nvd netapp clustered data ontap generic any version
nvd netapp data ontap generic any version
nvd netapp oncommand performance manager generic any version
nvd netapp oncommand unified manager generic any version
nvd ntp ntp generic ≥ 4.2.0 and < 4.2.8 · 4.2.8 · 4.2.8:p1 · 4.2.8:p1-beta1 · 4.2.8:p1-beta2 · 4.2.8:p1-beta3 · 4.2.8:p1-beta4 · 4.2.8:p1-beta5 · 4.2.8:p1-rc1 · 4.2.8:p1-rc2 · 4.2.8:p2 · 4.2.8:p2-rc1 · 4.2.8:p2-rc2 · 4.2.8:p2-rc3 · 4.2.8:p3 · 4.2.8:p3-rc1 · 4.2.8:p3-rc2 · 4.2.8:p3-rc3 · ≥ 4.3.0 and < 4.3.77
nvd redhat enterprise linux desktop generic 6.0 · 7.0
nvd redhat enterprise linux server generic 6.0 · 7.0
nvd redhat enterprise linux server aus generic 6.5 · 6.6 · 7.3 · 7.4 · 7.6 · 7.7
nvd redhat enterprise linux server eus generic 6.5 · 6.6 · 6.7 · 7.1 · 7.3 · 7.4 · 7.5 · 7.6 · 7.7
nvd redhat enterprise linux server tus generic 6.5 · 6.6 · 7.3 · 7.6 · 7.7
nvd redhat enterprise linux workstation generic 6.0 · 7.0

References

URLTags
http://bugs.ntp.org/show_bug.cgi?id=2901 Issue Tracking, Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2015-1930.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-2520.html Third Party Advisory
http://support.ntp.org/bin/view/Main/NtpBug2901 Vendor Advisory
http://support.ntp.org/bin/view/Main/SecurityNotice#October_2015_NTP_4_2_8p4_Securit Release Notes, Vendor Advisory
http://www.debian.org/security/2015/dsa-3388 Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html Third Party Advisory
http://www.securityfocus.com/bid/77280 Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1033951 Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1271070 Issue Tracking, Third Party Advisory, VDB Entry

Timeline

Published2017-08-07By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.