What is CVE-2026-102483?

CVE-2026-102483 is a high-severity vulnerability in Ntpsec, classified under Reachable Assertion. CVSS score: 7.5/10. Published 2026-10-21.

How severe is CVE-2026-102483?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Ntpsec

CVE-2026-102483

Reachable exit in NTPsec ntpd 1.1.4 through 1.2.5 allows a remote attacker to terminate the daemon via an NTS request with excess NTS Cookie Placeholder extension fields.

Published 2026-10-21.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Ntpsec

Weakness classification (CWE)

CWE-617 — Reachable Assertion

References

gitlab.com/NTPsec/ntpsec/-/work_items/899
gitlab.com/NTPsec/ntpsec/-/commit/df83f3c4f

Frequently asked questions

What is CVE-2026-102483?: CVE-2026-102483 is a high-severity vulnerability in Ntpsec, classified under Reachable Assertion. CVSS score: 7.5/10. Published 2026-10-21.
How severe is CVE-2026-102483?: High severity. CVSS v3 base score is 7.5 out of 10.