CVE-2021-34432

Public Exploit

Description

In Eclipse Mosquitto versions 2.07 and earlier, the server will crash if the client tries to send a PUBLISH packet with topic length = 0.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.34%
Vendor Advisory eclipse.org
Affected: The Eclipse Foundation Eclipse Mosquitto
Published at:
Updated at:

References

Link Tags
https://bugs.eclipse.org/bugs/show_bug.cgi?id=574141 issue tracking patch vendor advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-34432?
CVE-2021-34432 has been scored as a high severity vulnerability.
How to fix CVE-2021-34432?
To fix CVE-2021-34432, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-34432 being actively exploited in the wild?
It is possible that CVE-2021-34432 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-34432?
CVE-2021-34432 affects The Eclipse Foundation Eclipse Mosquitto.
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