CVE-2014-9751: The read_network_packet function in ntp_io.c in ntpd in NTP 4.x before 4.2.8p1 on Linux and OS X does not p...

Security readout for executives and security teams

This flaw affects older NTP daemon versions on Linux and OS X. An attacker who can reach the ntpd network interface may make restricted management packets appear to come from the IPv6 loopback address, potentially allowing runtime state to be read or changed. Exposure is most likely on Linux or OS X systems running ntpd 4.x before 4.2.8p1, especially where ntpd is reachable on a network interface. Vendor backports may change package version interpretation. Treat as a patching and exposure-reduction issue for infrastructure systems. Prioritize internet-facing or broadly reachable time servers, but do not label as emergency without evidence of active exploitation or a higher severity score. Mitigation focus: Upgrade NTP to 4.2.8p1 or a vendor-fixed package.; Apply relevant Debian, Red Hat, Oracle, or HPE advisories where applicable.; Check current vendor guidance for supported platform-specific fixes..

Prepared

Jun 13, 2026, 22:03 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.