Description
Heap-based buffer overflow in the JJY refclock driver in NTPsec ntpd before 1.2.6 allows an attacker who controls the Telephone JJY time source to corrupt memory or crash ntpd via more than six time replies.
Published: 2026-10-21
Score: 6.4 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Solution

Upgrade to version 1.2.6

Tracking

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Advisories

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History

Wed, 21 Oct 2026 17:15:00 +0000

Type Values Removed Values Added
Description Heap-based buffer overflow in the JJY refclock driver in NTPsec ntpd before 1.2.6 allows an attacker who controls the Telephone JJY time source to corrupt memory or crash ntpd via more than six time replies.
Title Heap-based Buffer Overflow in ntpsec
Weaknesses CWE-122
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitLab

Published:

Updated: 2026-10-21T15:03:46.313Z

Reserved: 2026-09-29T09:30:08.025Z

Link: CVE-2026-102484

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-21T16:17:14.043

Modified: 2026-10-21T16:17:14.043

Link: CVE-2026-102484

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-21T19:15:16Z

Weaknesses
  • CWE-122

    Heap-based Buffer Overflow