CVE-2016-7431: Ntp

Medium severity, CVSS 5.3. EPSS: 8.9% chance of exploitation in the next 30 days.

NTP before 4.2.8p9 allows remote attackers to bypass the origin timestamp protection mechanism via an origin timestamp of zero. NOTE: this vulnerability exists because of a CVE-2015-8138 regression.

Affected products

• Ntp Ntp: version 4.2.8 only

Published 2017-01-13. Last modified 2026-06-17.