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CVE-2015-7974 NTP

Affected softwareNTP
Severity7.7 High CVSS 3.1 2 scores
WeaknessImproper authentication (CWE-287)
Published26 Jan 2016
Updated17 Jun 2026

Description

NTP 4.x before 4.2.8p6 and 4.3.x before 4.3.90 do not verify peer associations of symmetric keys when authenticating packets, which might allow remote attackers to conduct impersonation attacks via an arbitrary trusted key, aka a "skeleton key."

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 10 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment no assessment published
  • Indexed PoC none indexed
  • EPSS 5.7% chance in 30 days

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 automated Upstream data
  • Record active
Decided by The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached
Finding This CVE names only products the Waratek agent cannot be installed into (netapp/oncommand_balance). They ship as sealed appliance images or as native code with no application JVM, so there is no start-up line to add -javaagent to. The vulnerability may well be a Java one; it is permanently out of ARMR's reach rather than outside its subject.

CVSS

7.7 HIGH v3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N 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 7.7 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N NVD Primary published
CVSS 2.0 4.0 none AV:N/AC:L/Au:S/C:N/I:P/A:N NVD Primary

Affected software and releases

Products and versions

6 products, 27 version entries
SourceVendorProductSchemeAffected versions
nvd debian debian linux generic 8.0 · 9.0
nvd netapp clustered data ontap generic any version
nvd netapp oncommand balance 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 · 4.2.8:p4 · 4.2.8:p5 · ≥ 4.3.0 and < 4.3.90
nvd siemens tim 4r-ie dnp3 firmware generic any version
nvd siemens tim 4r-ie firmware generic any version

References

URLTags
http://bugs.ntp.org/show_bug.cgi?id=2936 Issue Tracking, Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2016-2583.html Third Party Advisory
http://support.ntp.org/bin/view/Main/NtpBug2936 Vendor Advisory
http://www.debian.org/security/2016/dsa-3629 Third Party Advisory
http://www.securityfocus.com/bid/81960 Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1034782 Third Party Advisory, VDB Entry
http://www.talosintel.com/reports/TALOS-2016-0071/ Exploit, Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf Third Party Advisory
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03750en_us Third Party Advisory
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03766en_us Third Party Advisory

Timeline

Published2016-01-26By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.