CVE-2021-41039

Published: Dec 1, 2021Modified: Jun 17, 2026

7.5

Vector

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

Exploitability: 3.9 / Impact: 3.6

Source: NVD

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.

Affected (1)

Products: Eclipse: Mosquitto

Eclipse

1 product

Mosquitto

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Eclipse Mosquitto	From 1.6 to 2.0.11

Related CWEs

CWE-1050

Excessive Platform Resource Consumption within a Loop

The product has a loop body or loop condition that contains a control element that directly or indirectly consumes platform resources, e.g. messaging, sessions, locks, or file descriptors.

References (4)

https://bugs.eclipse.org/bugs/show_bug.cgi?id=575314

Source: emo@eclipse.org

ExploitIssue TrackingPatchVendor Advisory

https://www.debian.org/security/2023/dsa-5511

Source: emo@eclipse.org

https://bugs.eclipse.org/bugs/show_bug.cgi?id=575314

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitIssue TrackingPatchVendor Advisory

https://www.debian.org/security/2023/dsa-5511

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.