CVE-2026-26076

HIGH

7.5

Description

ntpd-rs is a full-featured implementation of the Network Time Protocol. Prior to 1.7.1, an attacker can remotely induce moderate increases (2-4 times above normal) in cpu usage. When having NTS enabled on an ntpd-rs server, an attacker can create malformed NTS packets that take significantly more effort for the server to respond to by requesting a large number of cookies. This can lead to degraded server performance even when a server could otherwise handle the load. This vulnerability is fixed in 1.7.1.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/12/2026

Last Modified2/23/2026

Sourcenvd

Honeypot Sightings0

Affected Products

tweedegolf:ntpd-rs

Weaknesses (CWE)

CWE-770

References

https://github.com/pendulum-project/ntpd-rs/commit/fa73af14d17b666b1142b9fee3ba22c18a841d24(security-advisories@github.com)

https://github.com/pendulum-project/ntpd-rs/releases/tag/v1.7.1(security-advisories@github.com)

https://github.com/pendulum-project/ntpd-rs/security/advisories/GHSA-c7j7-rmvr-fjmv(security-advisories@github.com)

IOC Correlations

No correlations recorded

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