The "pidfile" or "driftfile" directives in NTP ntpd 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77, when ntpd is configured to allow remote configuration, allows remote attackers with an IP address that is allowed to send configuration requests, and with knowledge of the remote configuration password to write to arbitrary files via the :config command.
CVE-2015-7703
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 7.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 88.8%
- KEV
- Not listed
Published
July 24, 2017
Last Modified
May 13, 2026
References (20)
- cve@mitrehttp://rhn.redhat.com/errata/RHSA-2016-0780.html
- cve@mitrehttp://rhn.redhat.com/errata/RHSA-2016-2583.html
- cve@mitrehttp://support.ntp.org/bin/view/Main/NtpBug2902
- cve@mitrehttp://www.debian.org/security/2015/dsa-3388
- cve@mitrehttp://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- cve@mitrehttp://www.securityfocus.com/bid/77278
- cve@mitrehttp://www.securitytracker.com/id/1033951
- cve@mitrehttps://bugzilla.redhat.com/show_bug.cgi?id=1254547
- cve@mitrehttps://security.gentoo.org/glsa/201607-15
- cve@mitrehttps://security.netapp.com/advisory/ntap-20171004-0001/
- af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2016-0780.html
- af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2016-2583.html
- af854a3a-2127-422b-91ae-364da2661108http://support.ntp.org/bin/view/Main/NtpBug2902
- af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2015/dsa-3388
- af854a3a-2127-422b-91ae-364da2661108http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
Patch Availability(3)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | ntp (1:4.2.6.p5+dfsg-3ubuntu8.1) @ wily | 2026-05-22 | ubuntu |
| redhat | ntp-0:4.2.6p5-25.el7 | 2016-11-03 | redhat |
| redhat | ntp-0:4.2.6p5-10.el6 | 2016-05-10 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
All Vendor Advisories
(3)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 9× in last 7d / 38× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-07 13:42 UTCEPSS rescore
- 2026-07-07 13:42 UTCEPSS rescore
- 2026-07-06 16:24 UTCEPSS rescore
- 2026-07-06 02:20 UTCEPSS rescore
- 2026-07-05 02:26 UTCEPSS rescore
- 2026-07-04 06:28 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-06-30 23:19 UTCEPSS rescore
- 2026-06-30 23:19 UTCEPSS rescore
- 2026-06-28 04:53 UTCEPSS rescore
- 2026-06-27 03:05 UTCEPSS rescore
- 2026-06-25 13:47 UTCEPSS rescore
- 2026-06-25 13:47 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-23 03:00 UTCOSV refresh
- 2026-06-21 14:54 UTCEPSS rescore
- 2026-06-21 14:54 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-19 19:23 UTCEPSS rescore
- 2026-06-19 19:23 UTCEPSS rescore
- 2026-06-18 17:50 UTCEPSS rescore
- 2026-06-17 17:50 UTCEPSS rescore
Show 46 moreShow fewer
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-16 17:50 UTCEPSS rescore
- 2026-06-16 17:50 UTCEPSS rescore
- 2026-06-15 17:45 UTCEPSS rescore
- 2026-06-13 22:57 UTCEPSS rescore
- 2026-06-12 23:09 UTCEPSS rescore
- 2026-06-12 23:09 UTCEPSS rescore
- 2026-06-11 13:57 UTCEPSS rescore
- 2026-06-11 13:57 UTCEPSS rescore
- 2026-06-10 22:15 UTCEPSS rescore
- 2026-06-10 13:18 UTCEPSS rescore
- 2026-06-08 14:14 UTCEPSS rescore
- 2026-06-07 15:22 UTCEPSS rescore
- 2026-06-06 13:45 UTCEPSS rescore
- 2026-06-05 23:23 UTCOSV refresh
- 2026-06-05 22:44 UTCEPSS rescore
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-06-04 13:10 UTCEPSS rescore
- 2026-06-04 13:10 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 00:14 UTCEPSS rescore
- 2026-05-29 13:41 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-26 13:41 UTCEPSS rescore
- 2026-05-26 07:16 UTCEPSS rescore
- 2026-05-26 07:16 UTCEPSS rescore
- 2026-05-24 16:43 UTCEPSS rescore
- 2026-05-22 11:29 UTCEG score recompute
- 2026-05-22 11:29 UTCVendor advisory
- 2026-05-22 11:29 UTCGHSA enrichment
- 2026-05-21 22:40 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-18 21:30 UTCEPSS rescore
- 2026-05-18 21:30 UTCEPSS rescore
Frequently asked(5)
What is CVE-2015-7703?
When was CVE-2015-7703 disclosed?
Is CVE-2015-7703 actively exploited?
What is the CVSS score of CVE-2015-7703?
How do I remediate CVE-2015-7703?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2015-7703
Is Your Infrastructure Affected by CVE-2015-7703?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.