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.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Eclipse | Mosquitto | >= 1.6, <= 2.0.11 |
Related Weaknesses (CWE)
References
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=575314ExploitIssue TrackingPatch
- https://www.debian.org/security/2023/dsa-5511
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=575314ExploitIssue TrackingPatch
- https://www.debian.org/security/2023/dsa-5511
FAQ
What is CVE-2021-41039?
CVE-2021-41039 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 possi...
How severe is CVE-2021-41039?
CVE-2021-41039 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-41039?
Check the references section above for vendor advisories and patch information. Affected products include: Eclipse Mosquitto.