CVE-2026-102486: ntpsec Out-of-bounds Read
CVSS: 7.5v3.1HighReceived
Published 21-10-2026Last modified 21-10-2026
Vulnerability summary
CVE-2026-102486 is a high (CVSS 7.5) Out-of-bounds Read vulnerability in ntpsec.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
Not scored
0%100%
No EPSS score yetKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 21-10-2026PublishedVulnerability first disclosed.
Description
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.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 2 agree
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
No EPSS score has been published for this record yet.
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ntpsec1 product
- ntpsec≥ 1.1.4, < 1.2.6
1 vendor · 1 product