CVE-2026-18321EPSS p1.2%

CVE-2026-18321CVE-2026-18321

Description

Buffer overflow in NTPsec's Zyfer refclock allows local attacker to crash ntpd

Scoring

CVSS 4.7 ()
VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS0.11% probability of exploitation · percentile 1.2% · 2026-10-05T12:00:23Z
Last modified2026-08-28
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.