CVE-2016-7428
ntpd in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (reject broadcast mode packets) via the poll interval in a broadcast packet.
02 Description
ntpd in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (reject broadcast mode packets) via the poll interval in a broadcast packet.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 3.90% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 90.0% of scored records. A rank, not a probability.
- NVD base score
- 4.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2017-01-13 16:00Z9 YR AGO
- Last updated
- 2024-08-06 01:57Z2 YR AGO
- Reserved
- 2016-09-09
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-400Uncontrolled Resource ConsumptionClass
- Data version
- 5.1
- Document digest
- a571be56afcfe6caa004c3fed54ae6b44ea2569a920fc076ba8c2ee777962bfe
05 Affected products
06 References
- h20566.www2.hpe.comhttps://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us
- usn.ubuntu.comUSN-3707-2https://usn.ubuntu.com/3707-2/
- support.ntp.orghttp://support.ntp.org/bin/view/Main/NtpBug3113
- support.hpe.comhttps://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03883en_us
- support.ntp.orghttp://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities
- nwtime.orghttp://nwtime.org/ntp428p9_release/
- www.securityfocus.com94446http://www.securityfocus.com/bid/94446
- www.kb.cert.orgVU#633847https://www.kb.cert.org/vuls/id/633847
- support.hpe.comhttps://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03899en_us
- www.securitytracker.com1037354http://www.securitytracker.com/id/1037354
- bto.bluecoat.comhttps://bto.bluecoat.com/security-advisory/sa139
- security.freebsd.orgFreeBSD-SA-16:39https://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.asc
07 Fixed in
Arch Linux
- ntp Fixed in 4.2.8.p9-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Debian 11
- ntp Fixed in 1:4.2.8p9+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- ntp Fixed in 1:4.2.6.p5+dfsg-3ubuntu2.14.04.11
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- ntp Fixed in 1:4.2.8p4+dfsg-3ubuntu5.5
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.