# CVE-2026-26076: rust-ntp-proto: ntpd-rs is a full-featured implementation of the Network Time Protocol

CVE-2026-26076 is fixed in rust-ntp-proto on 1 platform, first by DEBIAN-CVE-2026-26076, released February 12, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-26076
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0041
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 12, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | rust-ntp-proto Debian 13.5 (trixie) | 1.4.0-4+deb13u1 | [DEBIAN-CVE-2026-26076](https://patchblox.com/security/data/fix/linux/debian-cve-2026-26076.md) | Feb 12, 2026 |
| Linux | rust-ntp-proto Debian 14 | 1.7.1-1 | [DEBIAN-CVE-2026-26076](https://patchblox.com/security/data/fix/linux/debian-cve-2026-26076.md) | Feb 12, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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