CVE-2025-58066

MediumCVSS 5.3

Published: 29/08/2025(UTC)Updated: 18/10/2026(UTC)Translated: 19/10/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.33%

25th percentile - higher than 25% of all known CVEs

Summary

ntpd-rs is a clock synchronization tool implementing NTP and NTS. In versions 1.2.0 through 1.6.1 inclusive, servers allowing non-NTS traffic are affected by a denial-of-service vulnerability where an attacker can induce a message storm between two NTP servers running ntpd-rs. Client-only configurations are not affected.

Risk Assessment

An attacker can trigger a message storm between NTP servers, overloading them and disrupting time synchronization across the infrastructure.

Recommendation

Upgrade ntpd-rs to version 1.6.2 or later as soon as possible.

Other vulnerabilities in ntpd-rs

CVE-2023-33192High
The vulnerability in ntpd-rs, an NTP implementation written in Rust, is due to the lack of validation of NTS cookie lengths in received NTP packets. An attacker can crash the server by sending a specially crafted NTP packet containing a cookie shorter than what the server expects.

Original NVD description (English source)

nptd-rs is a tool for synchronizing your computer's clock, implementing the NTP and NTS protocols. In versions between 1.2.0 and 1.6.1 inclusive servers which allow non-NTS traffic are affected by a denial of service vulnerability, where an attacker can induce a message storm between two NTP servers running ntpd-rs. Client-only configurations are not affected. Affected users are recommended to upgrade to version 1.6.2 as soon as possible.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS