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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0004.

Exploitation none

Automatable yes

Technical Impact partial

Affected Vendors & Products

Vendors Products
Pendulum-project Subscribe
Ntpd-rs Subscribe

No data.

No data.

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Vendors Products
Pendulum-project Subscribe
Ntpd-rs Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/pendulum-project/ntpd-rs/commit/fa73af14d17b666b1142b9fee3ba22c18a841d24 cve-icon cve-icon
https://github.com/pendulum-project/ntpd-rs/releases/tag/v1.7.1 cve-icon cve-icon
https://github.com/pendulum-project/ntpd-rs/security/advisories/GHSA-c7j7-rmvr-fjmv cve-icon cve-icon
History

Fri, 13 Feb 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared Pendulum-project
Pendulum-project ntpd-rs
Vendors & Products Pendulum-project
Pendulum-project ntpd-rs

Fri, 13 Feb 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 12 Feb 2026 22:00:00 +0000

Type Values Removed Values Added
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.
Title ntpd-rs affected by excessive CPU load from malformed packets
Weaknesses CWE-770
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-02-13T16:00:13.690Z

Reserved: 2026-02-10T18:01:31.901Z

Link: CVE-2026-26076

cve-icon Vulnrichment

Updated: 2026-02-13T16:00:08.904Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-12T22:16:06.960

Modified: 2026-02-13T14:23:48.007

Link: CVE-2026-26076

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-13T21:29:18Z

Weaknesses