What is CVE-2014-9750?

CVE-2014-9750 is a vulnerability in NTP, classified under Improper Input Validation. Published 2015-10-06.

Is CVE-2014-9750 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Improper input validation in NTP

CVE-2014-9750

ntp_crypto.c in ntpd in NTP 4.x before 4.2.8p1, when Autokey Authentication is enabled, allows remote attackers to obtain sensitive information from process memory or cause a denial of service (daemon crash) via a packet containing an extension field with an invalid value for the length of its value field.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2015-10-06 · last modified 2026-06-17.

CVSS v2 metric

CVSS v2 base score 5.8 (Medium). Vector: AV:N/AC:M/Au:N/C:P/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.061 (93.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.061 · newest: 0.061 · change: 0.000

Affected products

NTP — versions 4.2.8
Oracle Linux — versions 7
Debian Linux — versions 7.0, 8.0, 9.0
Red Hat Enterprise Linux Desktop — versions 6.0
Red Hat Enterprise Linux Server — versions 6.0
Red Hat Enterprise Linux Workstation — versions 6.0

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

c-skills/CVEs

References

www.kb.cert.org/vuls/id/852879 (US Government Resource, Third Party Advisory, third-party-advisory)
support.ntp.org/bin/view/Main/SecurityNotice (Release Notes, Vendor Advisory)
www.securityfocus.com/bid/72583 (VDB Entry, Third Party Advisory, vdb-entry)
bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html (Third Party Advisory)
www.debian.org/security/2015/dsa-3388 (vendor-advisory, Third Party Advisory)
rhn.redhat.com/errata/RHSA-2015-1459.html (vendor-advisory, Third Party Advisory)
bugs.ntp.org/show_bug.cgi (Patch, Issue Tracking, Vendor Advisory)
support.hpe.com/hpsc/doc/public/display (Third Party Advisory)

Frequently asked questions

What is CVE-2014-9750?: CVE-2014-9750 is a vulnerability in NTP, classified under Improper Input Validation. Published 2015-10-06.
Is CVE-2014-9750 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.