CVE-2026-102484
Heap-based Buffer Overflow in ntpsec
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-122 |
| Vendor | ntpsec |
| Product | ntpsec |
| Published | Oct 21, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H Attack Vector
Physical
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
High
Affected Versions
NTPsec / ntpsec
0 < 1.2.6
References
Credits
Tristan Madani