cvedb.io
CVE-2021-34431
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2021-07-22T14:15:08.050 · Last modified 2026-06-17T03:55:51.327

Summary

In Eclipse Mosquitto version 1.6 to 2.0.10, if an authenticated client that had connected with MQTT v5 sent a crafted CONNECT message to the broker a memory leak would occur, which could be used to provide a DoS attack against the broker.

Affected products

eclipse — mosquitto

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.