CVE-2016-9312
ntpd in NTP before 4.2.8p9, when running on Windows, allows remote attackers to cause a denial of...
ntpd in NTP before 4.2.8p9, when running on Windows, allows remote attackers to cause a denial of service via a large UDP packet.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
ntpd in NTP before 4.2.8p9, when running on Windows, allows remote attackers to cause a denial of service via a large UDP packet.
- Record
CVE-2016-9312- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-399
- Updated
- 2026-11-02
CVE List No score
ntpd in NTP before 4.2.8p9, when running on Windows, allows remote attackers to cause a denial of service via a large UDP packet.
- Record
CVE-2016-9312- Updated
- 2026-11-02
EUVDEUVD-2016-10122 No score
ntpd in NTP before 4.2.8p9, when running on Windows, allows remote attackers to cause a denial of service via a large UDP packet.
- Record
EUVD-2016-10122- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qcqx-qrc2-36hm
ntpd in NTP before 4.2.8p9, when running on Windows, allows remote attackers to cause a denial of...
ntpd in NTP before 4.2.8p9, when running on Windows, allows remote attackers to cause a denial of service via a large UDP packet.
- Record
GHSA-qcqx-qrc2-36hm- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2016-9312 is a high vulnerability (CVSS 7.5) in Ntp, published January 13, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 31.7%, the 98th percentile. No source names a fixed version.
References
support.ntp.org/bin/view/Main/SecurityNotice
nwtime.org/ntp428p9_release
kb.cert.org/vuls/id/633847
securitytracker.com/id/1037354
bto.bluecoat.com/security-advisory/sa139
securityfocus.com/bid/94450
nvd.nist.gov/vuln/detail/CVE-2016-9312
github.com/advisories/GHSA-qcqx-qrc2-36hm