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CVE-2016-7427
The broadcast mode replay prevention functionality in ntpd in NTP before 4.2.8p9 allows remote attackers to cause a denial of service…
Medium4.3EPSS 3.9%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The broadcast mode replay prevention functionality in ntpd in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (reject broadcast mode packets) via a crafted broadcast mode packet.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium4.3 | CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
- EPSS (exploitation in 30 days)
- 3.9% · top 9.7% of all CVEs (4 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Weakness
Affected products
n/a
- affected n/a
References (12)
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-3707-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03883en_us (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://nwtime.org/ntp428p9_release/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://support.ntp.org/bin/view/Main/NtpBug3114 (opens in a new tab)x_refsource_CONFIRMx_transferred
- VU#633847 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03899en_us (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1037354 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://bto.bluecoat.com/security-advisory/sa139 (opens in a new tab)x_refsource_CONFIRMx_transferred
- FreeBSD-SA-16:39 (opens in a new tab)vendor-advisoryx_refsource_FREEBSDx_transferred
- 94447 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2016-7427)Record last updated .