CVE-2018-12327

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

Stack-based buffer overflow in ntpq and ntpdc of NTP version 4.2.8p11 allows an attacker to achieve code execution or escalate to higher privileges via a long string as the argument for an IPv4 or IPv6 command-line parameter. NOTE: It is unclear whether there are any common situations in which ntpq or ntpdc is used with a command line from an untrusted source.

Metrics

CVSS 3.0 9.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jun 20, 2018
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2018-12327: Critical severity, CVSS 9.8 | Vulnix