Medium severity · published Oct 21, 2026
CVE-2026-102485
Out-of-bounds Read in ntpsec
New
5.2
CVSS
0.2%
EPSS
No
On KEV
Description
Out-of-bounds read in the Motorola Oncore refclock driver in NTPsec ntpd before 1.2.6 allows an attacker who controls the GPS receiver's serial data to crash ntpd or disclose memory via a PPS Control (@@Gc) reply with an out-of-range mode byte.
CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Attack vector
Physical
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NT
ntpsec · NTPsec
before 1.2.6 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-102485
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-102485
gitlab.com
https://gitlab.com/NTPsec/ntpsec/-/commit/22a09b3aec58831a9e4a008f3f22caa155f969c2
gitlab.com
https://gitlab.com/NTPsec/ntpsec/-/work_items/895
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9.1
CVE-2019-6444
An issue was discovered in NTPsec before 1.1.3
7.5
CVE-2026-102486
Out-of-bounds Read in ntpsec
7.5
CVE-2026-102483
Reachable Assertion in ntpsec
7.5
CVE-2023-4012
ntpd will crash if the server is not NTS-enabled (no certificate) and it receives an NTS-enabled client request (mode 3)