CVE-2026-18321

mediumpriority · track · 0EPSS 0.001 · 1 %ileEU

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.11% (1st) EPSS

CVSS 4.7 · medium

Is it mine?

1 products

Who says so?

2 sources

cnnvd · enisa_euvd

EPSS · scored 2026-10-27

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

cvss

Technical severity, 0–10. One row per scoring source.

4.7

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.14.7mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.14.7mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · cve@gitlab.comexploitability 1 · impact 3.6

v3.14.3mediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

The CWE weakness classes this flaw belongs to.

Products and version ranges known to be affected.

Other names and identifiers for this entity.

Which sources assert this record, and when.

published 2026-07-31modified 2026-08-28

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External citations — patches, advisories, analysis.

scry

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