CVE-2017-6455: Ntp

High severity, CVSS 7.0. EPSS: 0.5% chance of exploitation in the next 30 days.

NTP before 4.2.8p10 and 4.3.x before 4.3.94, when using PPSAPI, allows local users to gain privileges via a DLL in the PPSAPI_DLLS environment variable.

Affected products

• Ntp Ntp: version 4.2.8 only; version 4.3.0 only; version 4.3.1 only; version 4.3.2 only; version 4.3.3 only; version 4.3.4 only; …

Published 2017-03-27. Last modified 2026-06-17.