CVE-2026-26076 — ntpd-rs affected by excessive CPU load from malformed packets
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.…
Published: 2026-02-12 · CVSS: 6.9 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7