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: < 1% Very Low
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

Thu, 29 Oct 2026 22:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 21 Oct 2026 23:45:00 +0000

Type Values Removed Values Added
First Time appeared Ntpsec
Ntpsec ntpsec
Vendors & Products Ntpsec
Ntpsec ntpsec

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

Ntpsec Ntpsec
cve-icon MITRE

Status: PUBLISHED

Assigner: GitLab

Published:

Updated: 2026-10-29T20:57:05.091Z

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

Link: CVE-2026-102484

cve-icon Vulnrichment

Updated: 2026-10-29T17:32:38.721Z

cve-icon NVD

Status : Awaiting Analysis

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

Modified: 2026-10-29T21:17:07.933

Link: CVE-2026-102484

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-22T01:15:14Z

Weaknesses
  • CWE-122

    Heap-based Buffer Overflow