CVE-2021-41039

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

In versions 1.6 to 2.0.11 of Eclipse Mosquitto, an MQTT v5 client connecting with a large number of user-property properties could cause excessive CPU usage, leading to a loss of performance and possible denial of service.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-1050

Affected software

No affected versions have been published.

Timeline

Published: Dec 1, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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