CVE-2026-102486

high

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.

References

https://gitlab.com/NTPsec/ntpsec/-/work_items/895

https://gitlab.com/NTPsec/ntpsec/-/work_items/891

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

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-107312

Details

Source: Mitre, NVD

Published: 2026-10-21

Updated: 2026-10-22

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H