CVE-2021-41039 - CVE House
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Status published High CVE-2021-41039

In versions 1.6 to 2.0.11 of Eclipse Mosquitto, an MQTT...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • This issue was discovered and reported by Zhanxiang Song, Bin Yuan, DeQing Zou, Hai Jin, Huazhong Univ. of Sci. & Tech.; Luyi Xing, IU; Yan Jia, Nankai University

References

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Affected Vendor

The Eclipse Foundation

View all reports →

Affected Software

Eclipse Mosquitto
Vulnerable Versions:
1.6, unspecified

Timeline

Official Publish: December 1st, 2021
Last Modified: August 4th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-1050

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.