NTPsec has 4 CVEs on record. 4 were published in the last 90 days. The busiest recent month was October 2026 with 4. The median CVSS is 7.0 (medium).
CVEs per month
Last 12 months, by publish date
- Exploited share
- 0% vs 1% corpus
- Median CVSS
- 7.0
- Publish → KEV
- —
- Last 90 days
- 4 prev 0
NTPsec vulnerabilities
CVEs affecting NTPsec, newest first. Open any entry for full detail, references, and exploit status.
4 CVEsRSS
CVE-2026-102485Medium· 5.2Out-of-bounds Read in ntpsec
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 mod…
CVE-2026-102484Medium· 6.4Heap-based Buffer Overflow in ntpsec
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.
CVE-2026-102483High· 7.5Reachable Assertion in ntpsec
Reachable exit in NTPsec ntpd 1.1.4 through 1.2.5 allows a remote attacker to terminate the daemon via an NTS request with excess NTS Cookie Placeholder extension fields.
CVE-2026-102486High· 7.5Out-of-bounds Read in ntpsec
Out-of-bounds read in NTS extension field parsing in NTPsec ntpd 1.1.4 through 1.2.5 allows a remote attacker to crash the daemon via an NTS Authenticator and Encrypted Extension Fields (AEEF) field with an oversized nonce length.