CVE 6.9 MEDIUM

ntpd-rs affected by excessive CPU load from malformed packets_CVE-2026-26076

6.9 / 10
MEDIUM
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

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.

Basic Information

ID CVE-2026-26076
Source GitHub_M
Published Feb 12, 2026 at 21:48

Affected Product

Vendor pendulum-project
Product ntpd-rs
Version < 1.7.1
Affected Versions pendulum-project ntpd-rs < 1.7.1

CWE Classification

References

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