CVE-2026-18321

Public on 2026-07-31
Modified on 2026-07-31
Description
Buffer overflow in NTPsec's Zyfer refclock allows local attacker to crash ntpd
Severity
Medium severity
Medium
See what this means
CVSS v3 Base Score
4.7
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core ntp Pending Fix

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H