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Case File

CVE-2016-4956

MEDIUM · CVSS 5.3 EPSS 16.35% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2016-07-05 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.3. Public exploit code or proof-of-concept references have been detected in its references. Its EPSS score suggests a 16.4% probability of exploitation in the next 30 days. It may be remotely exploitable. It may lead to a denial-of-service condition.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

External Security References

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2016-4956
Severity
MEDIUM
CVSS
5.3
EPSS
16.35%

Original NVD Description

ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (interleaved-mode transition and time change) via a spoofed broadcast packet. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-1548.