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.

• CWE-400

• http://nwtime.org/ntp428p9_release/Release Notes, Vendor Advisory
• http://support.ntp.org/bin/view/Main/NtpBug3113Issue Tracking, Mitigation, Vendor Advisory
• http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_VulnerabilitiesVendor Advisory
• http://www.securityfocus.com/bid/94446Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1037354
• https://bto.bluecoat.com/security-advisory/sa139
• https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us
• https://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.asc
• https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03883en_us
• https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03899en_us
• https://usn.ubuntu.com/3707-2/
• https://www.kb.cert.org/vuls/id/633847Third Party Advisory, US Government Resource
• http://nwtime.org/ntp428p9_release/Release Notes, Vendor Advisory
• http://support.ntp.org/bin/view/Main/NtpBug3113Issue Tracking, Mitigation, Vendor Advisory
• http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_VulnerabilitiesVendor Advisory
• http://www.securityfocus.com/bid/94446Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1037354
• https://bto.bluecoat.com/security-advisory/sa139
• https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us
• https://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.asc
• https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03883en_us
• https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03899en_us
• https://usn.ubuntu.com/3707-2/
• https://www.kb.cert.org/vuls/id/633847Third Party Advisory, US Government Resource

Published

Jan 13, 2017

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2016-7422The virtqueue_map_desc function in hw/virtio/virtio.c in QEM…6
• CVE-2016-7423The mptsas_process_scsi_io_request function in QEMU (aka Qui…4.4
• CVE-2016-7424The put_no_rnd_pixels8_xy2_mmx function in x86/rnd_template.…
• CVE-2016-7425The arcmsr_iop_message_xfer function in drivers/scsi/arcmsr/…7.8
• CVE-2016-7426NTP before 4.2.8p9 rate limits responses received from the c…7.5
• CVE-2016-7427The broadcast mode replay prevention functionality in ntpd i…
• CVE-2016-7429NTP before 4.2.8p9 changes the peer structure to the interfa…
• CVE-2016-7431NTP before 4.2.8p9 allows remote attackers to bypass the ori…
• CVE-2016-7433NTP before 4.2.8p9 does not properly perform the initial syn…
• CVE-2016-7434The read_mru_list function in NTP before 4.2.8p9 allows remo…7.5
• CVE-2016-7435The (1) SCTC_REFRESH_EXPORT_TAB_COMP, (2) SCTC_REFRESH_CHECK…
• CVE-2016-7437SAP Netweaver 7.40 improperly logs (1) DUI and (2) DUJ event…