CVE-2021-41039

High

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.

SeverityHigh

CVSS7.5

Exploit probability—

ProductEclipse Mosquitto

PublishedDec 1, 2021

First seenDec 1, 2021

Weakness typeCWE-1050CWE-1050

How to fix

Vendor advisories

debian.org/security/2023/dsa-5511

Affected products

Product	Affected versions	Fixed in
eclipse mosquitto	1.6 ≤ v ≤ 2.0.11	—

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