CVE-2017-7651: Debian Linux

High severity, CVSS 7.5. EPSS: 5.1% chance of exploitation in the next 30 days.

In Eclipse Mosquitto 1.4.14, a user can shutdown the Mosquitto server simply by filling the RAM memory with a lot of connections with large payload. This can be done without authentications if occur in connection phase of MQTT protocol.

Affected products

• Debian Debian Linux: version 7.0 only; version 8.0 only; version 9.0 only
• Eclipse Mosquitto: up to and including 1.4.14

Published 2018-04-24. Last modified 2026-06-17.