# Ntpsec Ntpd vulnerabilities

Source: https://junglewise.ai/threats/technologies/ntpsec-ntpd  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/ntpsec-ntpd.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 4 vulnerabilities in Ntpsec Ntpd: 0 in the last 7 days and 4 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-102486, was published on 21 October 2026. 4 vulnerabilities in the last four weeks, up from none in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 4
- Last 90 days: 4
- All time: 4 (0 critical, 0 exploited in the wild)

## About Ntpsec Ntpd

NTP daemon implementation for time synchronization across networks.

## Latest Ntpsec Ntpd vulnerabilities

- [CVE-2026-102486: NTPsec ntpd out-of-bounds read in NTS extension parsing](https://junglewise.ai/threats/cve-2026-102486-out-of-bounds-read-in-nts-extension-field-parsing-in-ntpsec-ntpd) (high, CVSS 7.5, published 21 Oct 2026)
- [CVE-2026-102485: NTPsec ntpd out-of-bounds read in Motorola Oncore driver](https://junglewise.ai/threats/cve-2026-102485-out-of-bounds-read-in-the-motorola-oncore-refclock-driver-in) (medium, CVSS 5.2, published 21 Oct 2026)
- [CVE-2026-102484: NTPsec ntpd heap buffer overflow in JJY refclock driver](https://junglewise.ai/threats/cve-2026-102484-heap-based-buffer-overflow-in-the-jjy-refclock-driver-in-ntpsec) (medium, CVSS 6.4, published 21 Oct 2026)
- [CVE-2026-102483: NTPsec ntpd denial of service in NTS Cookie handling](https://junglewise.ai/threats/cve-2026-102483-reachable-exit-in-ntpsec-ntpd-1-1-4-through-1-2-5-allows-a) (high, CVSS 7.5, published 21 Oct 2026)

## Most severe Ntpsec Ntpd vulnerabilities

- [CVE-2026-102486: NTPsec ntpd out-of-bounds read in NTS extension parsing](https://junglewise.ai/threats/cve-2026-102486-out-of-bounds-read-in-nts-extension-field-parsing-in-ntpsec-ntpd) (high, CVSS 7.5, published 21 Oct 2026)
- [CVE-2026-102483: NTPsec ntpd denial of service in NTS Cookie handling](https://junglewise.ai/threats/cve-2026-102483-reachable-exit-in-ntpsec-ntpd-1-1-4-through-1-2-5-allows-a) (high, CVSS 7.5, published 21 Oct 2026)
- [CVE-2026-102484: NTPsec ntpd heap buffer overflow in JJY refclock driver](https://junglewise.ai/threats/cve-2026-102484-heap-based-buffer-overflow-in-the-jjy-refclock-driver-in-ntpsec) (medium, CVSS 6.4, published 21 Oct 2026)
- [CVE-2026-102485: NTPsec ntpd out-of-bounds read in Motorola Oncore driver](https://junglewise.ai/threats/cve-2026-102485-out-of-bounds-read-in-the-motorola-oncore-refclock-driver-in) (medium, CVSS 5.2, published 21 Oct 2026)

## Vulnerabilities per week

4 vulnerabilities in the last four weeks, up from none in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 4 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Ntpsec technologies

- [NTPsec](https://junglewise.ai/threats/technologies/ntpsec): 3 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Ntpsec Ntpd vulnerabilities", https://junglewise.ai/threats/technologies/ntpsec-ntpd, 9 November 2026.