CVE-2026-102486

Out-of-bounds Read in ntpsec

State: Published
Severity: 7.5 High
Published: Oct 21, 2026
Updated: Oct 29, 2026
Reserved: Sep 29, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	GitLab

Weaknesses

CWE-125 Out-of-bounds Read

Affected Products

Product	Versions
ntpsecNTPsec	1.1.4 to before 1.2.6Affected

References

https://gitlab.com/NTPsec/ntpsec/-/work_items/891
https://gitlab.com/NTPsec/ntpsec/-/work_items/895
https://gitlab.com/NTPsec/ntpsec/-/commit/7cc079387

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