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CVE-2026-102484

Heap-based Buffer Overflow in ntpsec

Medium6.4EPSS 0.21%
Published
Updated
Reserved
Assigned by
GitLab

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.

Scores

CVSS scores of CVE-2026-102484, by who scored it
Scored byCVSSScoreVector
GitLabCNA (assigner)3.1Medium6.4CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
NVDNVD · Awaiting Analysis3.1Medium6.4CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
EPSS (exploitation in 30 days)
0.21% · top 89% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.4.

Weakness

Affected products

What to do

Solution: Upgrade to version 1.2.6

References (2)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

CVE-2026-102484 badge
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Record last updated .